Editor’s note: This list will be updated each Friday. On June 1, the Colorado Department of Public Health and Environment changed its definition for what qualifies as a COVID-19 outbreak. That change is reflected in outbreaks reported after June 1.

Summit County uses the Colorado Department of Public Health and Environment’s definition of an outbreak, which is defined as five or more confirmed or probable cases of COVID-19, of which at least one case has had a positive molecular amplification test or antigen test, in a facility or (non-household) group with onset in a 14-day period. Two or more cases are considered an outbreak in residential health care facilities and correctional facilities.

The county reports outbreaks in the COVID-19 Outbreaks table, which can be found on the county’s coronavirus webpage. To see the current status of each outbreak, visit the state’s outbreak data webpage.

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All reported outbreaks

Summit Professional Services: 2 cases
Summit County officials reported the outbreak on May 28. The first case was confirmed on May 19. The outbreak was considered resolved June 22.

Smith Roofing LLC: 3 cases Summit County officials reported the outbreak on May 28. The first case was confirmed on May 15. The outbreak was considered resolved June 17.

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Dillon Valley Elementary School: 2 cases
Summit School District officials reported the outbreak on May 25. The first case was confirmed on May 12. The outbreak was considered resolved June 15.

Vacasa Summit County: 2 cases
Summit County officials reported the outbreak May 14. The first case was confirmed on April 29. The outbreak was considered resolved May 31.

Breckenridge Distillery, Breckenridge: 6 cases
Summit County officials reported the outbreak April 30. The first case was confirmed on April 8. The outbreak was considered resolved May 25.

REI, Dillon: 2 cases
Summit County officials reported the outbreak April 30. The first case was confirmed on April 10. The outbreak was considered resolved May 11.

Spencer’s Restaurant, Breckenridge: 4 cases
Summit County officials reported the outbreak April 30. The first case was confirmed on March 31. The outbreak was considered resolved May 5.

Peak 8 Properties Grand Colorado, Breckenridge: 3 cases
Summit County officials reported the outbreak April 16. The first case was confirmed on March 25. The outbreak was considered resolved on April 29.

Infinity Certified Welding & Fabrication, Silverthorne: 3 cases
Summit County officials reported the outbreak April 16. The first case was confirmed on April 1. The outbreak was considered resolved May 13.

Adult social gathering, Montezuma: 3 cases
Summit County officials reported the outbreak April 16. The first case was confirmed on April 8. The outbreak was considered resolved May 7.

Summit Middle School, Frisco: 18 cases
Summit School District reported the outbreak among students April 9. The first case was confirmed on March 18. The outbreak was considered resolved May 24.

Teenager social gathering, Breckenridge: 4 cases
Summit County officials reported the outbreak April 9. The first case was confirmed on March 21. The outbreak was considered resolved April 19.

Adult social gathering, Breckenridge: 4 cases
Summit County officials reported the outbreak April 9. The first case was confirmed on March 22. The outbreak was considered resolved April 26.

DoubleTree by Hilton hotel, Breckenridge: 2 cases
Summit County officials reported the outbreak April 9. The first case was confirmed on March 27. The outbreak was considered resolved April 25.

Breckenridge Mountain Information, Breckenridge: 2 cases
Summit County officials reported the outbreak April 9. The first case was confirmed on March 21. The outbreak was considered resolved April 22.

Adult social gathering, Silverthorne: 3 cases
Summit County officials reported the outbreak April 9. The first case was confirmed on March 24. The outbreak was considered resolved April 26.

Youth lacrosse team, Silverthorne: 2 cases
Summit County officials reported the outbreak April 9. The first case was confirmed on March 26. The outbreak was considered resolved April 28.

Keystone Ski Patrol, Keystone: 2 cases
Summit County officials reported the outbreak April 9. The first case was confirmed on March 28. The outbreak was considered resolved April 28.

Adult social gathering, Copper Mountain: 5 cases
Summit County officials reported the outbreak April 9. The first case was confirmed on March 26. The outbreak was considered resolved May 7.

Summit Middle School, Frisco: 2 cases
Summit School District reported the outbreak among a staff member and a student April 1.

Alpine Dance Academy, Frisco: 21 cases (17 among staff and students, 4 among family members)
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 8. Health officials say the outbreak was caused by students’ failure to adhere to guidelines aimed at preventing the spread of the virus, including attending class while sick. The outbreak was considered resolved May 4.

Harker Neumaier Associates, Frisco: 2 cases
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 14. The outbreak was considered resolved April 16.

Tenmile Station, Breckenridge Ski Resort: 3 cases
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 10. The outbreak was considered resolved April 19.

Adult social gathering, Frisco: 3 cases
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 20. The outbreak was considered resolved April 21.

The Edge, Copper Mountain Resort: 19 cases
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 18. The outbreak was considered resolved May 4.

Piante Pizzeria, Breckenridge: 3 cases
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 20. The outbreak was considered resolved April 29.

Breck Sports Beaver Run, Breckenridge Ski Resort: 4 cases
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 21. The outbreak was considered resolved April 27.

Mountain Sports Outlet, Silverthrone: 3 cases
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 17. The outbreak was considered resolved April 19.

Teen social gathering, Breckenridge: 4 cases
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 21. The outbreak was considered resolved April 19.

Adult social gathering, Breckenridge: 4 cases
Summit County officials reported the outbreak on April 2. The first case was confirmed on March 22. The outbreak was considered resolved April 26.

Ollie’s Pub and Grub, Frisco: 7 cases
Summit County officials reported the outbreak on March 26. The first case was confirmed on Feb. 20. The outbreak was considered resolved April 18.

Christy Sports, Dillon: 2 cases
Summit County officials reported the outbreak on March 26. The first case was confirmed on March 13. The outbreak was considered resolved April 14.

Christy Sports Lone Star, Breckenridge: 7 cases
Summit County officials reported the outbreak on March 26. The first case was confirmed on March 12. The outbreak was considered resolved April 27.

Summit County Jail, Breckenridge: 4 cases
Summit County officials reported the outbreak on March 26. The first case was confirmed on March 21. The outbreak was considered resolved April 26.

Breckenridge Terrace Building B, Breckenridge: 7 cases
Summit County officials reported the outbreak on March 19. The first case was confirmed on Feb. 23.

Breckenridge Terrace Building C, Breckenridge: 3 cases
Summit County officials reported the outbreak on March 19. The first case was confirmed on March 14. The outbreak was considered resolved April 18.

Arapahoe Cafe & Pub, Dillon: 3 cases
Summit County officials reported the outbreak on March 19. The first case was confirmed on March 8. The outbreak was considered resolved April 10.

Tocko, Frisco: 3 cases
Summit County officials reported the outbreak on March 19. The first case was confirmed on March 8. The outbreak was considered resolved April 12.

Ski Tip Lodge, Keystone: 2 cases
Summit County officials reported the outbreak on March 12. The first case was confirmed on March 3. The outbreak was reported resolved April 6.

Silverthorne Recreation Center: 2 cases
Summit County officials reported the outbreak on March 12. The first case was confirmed on Feb. 18. The outbreak was considered resolved April 13.

Cala Pub and Restaurant, Dillon: 3 cases
Summit County officials reported the outbreak on March 12. The first case was confirmed on Feb. 26. The outbreak was considered resolved April 22.

Keystone Resort Outpost cafeteria: 2 cases
Summit County officials reported the outbreak on March 12. The first case was confirmed on Feb. 20. The outbreak was reported resolved March 20.

Little Red Schoolhouse, Breckenridge: 5 cases
Summit County officials reported the outbreak on March 12. The first case was confirmed on Feb. 15. The outbreak was reported resolved April 6.

UPS, Silverthorne: 7 cases
Summit County officials reported the outbreak on March 12. The first case was confirmed on Jan. 29. The outbreak was reported resolved March 23.

IBD Design Studio, Breckenridge: 2 cases
Summit County officials reported the outbreak on March 5. The first case was confirmed on Feb. 20. The outbreak was reported resolved March 20.

Breckenridge grooming and trail maintenance: 2 cases
Summit County officials reported the outbreak on March 5. The first case was confirmed on Feb. 11. The outbreak was reported resolved March 18.

Social gathering, Dillon: 4 cases
Summit County officials reported the outbreak on Feb. 26. The first case was confirmed on Feb. 6. The outbreak was reported resolved March 18.

Walgreens, Dillon: 2 cases
Summit County officials reported the outbreak on Feb. 26. The first case was confirmed on Feb. 2. The outbreak was reported resolved March 6.

Chipotle, Silverthorne: 2 cases
Summit County officials reported the outbreak on Feb. 26. The first case was confirmed on Feb. 3. The outbreak was reported resolved March 13.

Ski school product sales, Breckenridge Ski Resort: 2 cases
Summit County officials reported the outbreak on Feb. 26. The first case was confirmed on Jan. 16. The outbreak was considered resolved Feb. 28.

Native Roots, Dillon: 2 cases
Summit County officials reported the outbreak on Feb. 26. The first case was confirmed on Feb. 6. The outbreak was reported resolved March 13.

Wine gathering, Keystone: 3 cases
Summit County officials reported the outbreak on Feb. 26. The first case was confirmed on Feb. 6. The outbreak was considered resolved March 11.

High Country Healing, Silverthorne: 2 cases
Summit County officials reported the outbreak on Feb. 26. The first case was confirmed on Jan. 22. The outbreak was considered resolved March 3.

City Market, Dillon: 3 cases
Summit County officials reported the outbreak on Feb. 19. The first case was confirmed on Feb. 1. The outbreak was considered resolved May 10.

Tenderfoot Apartments, Keystone: 2 cases
Summit County officials reported the outbreak on Feb. 19. The first case was confirmed on Jan. 28. The outbreak was considered resolved March 11.

Breckenridge Terrace, Building G: 3 cases
Summit County officials reported the outbreak on Feb. 19. The first case was confirmed on Jan. 27. The outbreak was considered resolved March 10.

Mountain House Cafeteria, Keystone Ski Resort: 2 cases
Summit County officials reported the outbreak on Feb. 19. The first case was confirmed on Jan. 26. The outbreak was considered resolved March 2.

Breckenridge Terrace, Building K: 5 cases
Summit County officials reported the outbreak on Feb. 19. The first case was confirmed on Jan. 25. The outbreak was reported resolved March 21.

Children’s Ski School, Breckenridge Ski Resort: 3 cases
Summit County officials reported the outbreak on Feb. 19. The first case was confirmed on Jan. 29. The outbreak was considered resolved March 2.

Black Tie Ski Rentals of Breckenridge: 2 cases
Summit County officials reported the outbreak on Feb. 12. The first case was confirmed on Feb. 1. The outbreak was reported resolved March 14.

Grand Timber Lodge, Breckenridge: 4 cases
Summit County officials reported the outbreak on Feb. 12. The first case was confirmed on Jan. 19. The outbreak was considered resolved March 6.

Sunrise employee housing, Keystone: 4 cases
Summit County officials reported the outbreak on Feb. 12. The first case was confirmed on Jan. 23. The outbreak was considered resolved March 1.

Breckenridge Mountain Information Center: 2 cases
Summit County officials reported the outbreak on Feb. 12. The first case was confirmed on Jan. 30. The outbreak was considered resolved Feb. 28.

Dillon Community Church: 2 cases
Summit County officials reported the outbreak on Feb. 12. The first case was confirmed on Jan. 26. The outbreak was considered resolved March 2.

Silverthorne Elementary: 2 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 23. The outbreak was considered resolved Feb. 26.

Ski check, Keystone Ski Resort: 2 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 25. The outbreak was considered resolved Feb. 26.

Breckenridge Terrace: 2 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 23. The outbreak was considered resolved Feb. 26.

Social gathering, Keystone: 3 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 25. The outbreak was considered resolved Feb. 25.

Bighorn Bistro, Keystone: 4 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 19. The outbreak was considered resolved on Feb. 25.

Highside Brewing, Frisco: 6 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 26. The outbreak was considered resolved March 9.

Short-term rental social gathering, Silverthorne: 3 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 18. The outbreak was considered resolved on Feb. 23.

Mountain House adult ski school, Keystone Ski Resort: 2 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 11. The outbreak was considered resolved on Feb. 21.

Peak 8 children’s ski school, Breckenridge Ski Resort: 3 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 22. The outbreak was considered resolved March 11.

River Run adult ski school, Keystone Ski Resort: 2 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 21. The outbreak was considered resolved Feb. 21.

Adult ski school, Breckenridge Ski Resort: 2 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 13. The outbreak was considered resolved on Feb. 22.

The Maggie, Breckenridge: 2 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 17. The outbreak was considered resolved on Feb. 21.

Waste Management: 2 cases
Summit County officials reported the outbreak on Feb. 5. The first case was confirmed on Jan. 20. The outbreak was considered resolved Feb. 28.

Lake Dillon Preschool: 2 cases
Summit County officials reported the outbreak on Jan. 29. The first case was confirmed on Jan. 19. The outbreak was considered resolved March 9.

Social gathering, Breckenridge: 5 cases
Summit County officials reported the outbreak on Jan. 29. The first case was confirmed on Jan. 18. The outbreak was considered resolved on Feb. 18.

Good Times Adventures, Breckenridge: 5 cases
Summit County officials reported the outbreak on Jan. 29. The first case was confirmed on Jan. 17. The outbreak was considered resolved on Feb. 22.

Breckenridge Ski Resort, guest information: 2 cases
Summit County officials reported the outbreak on Jan. 29. The first case was confirmed on Jan. 11. The outbreak was considered resolved on Feb. 15.

Christy Sports, Dillon: 9 cases
Summit County officials reported the outbreak on Jan. 29. The first case was confirmed on Jan. 12. The outbreak was considered resolved on Feb. 19.

Upper Blue Elementary: 2 cases
Summit School District officials reported the outbreak among a staff member and student on Jan. 28. The two positive cases have been placed in isolation and all close contacts are under quarantine, according to a news release. The class schedule at the school will go on uninterrupted, according to the release. The outbreak was considered resolved March 31.

Summit High School, winter sports team: 10 cases
Summit School District officials reported the outbreak among athletes on an unspecified winter sports team on Jan. 27. On Feb. 5, public health officials updated the outbreak to reflect 10 total cases.

Sevens, Breckenridge Ski Resort: 2 cases
Summit County officials reported the outbreak at the restaurant on Jan. 22. The first case was confirmed on Jan. 3. The outbreak was considered resolved on Feb. 7.

Breckenridge Police Department: 3 cases
Summit County officials reported the outbreak on Jan. 22. The first case was confirmed on Jan. 11. The outbreak was considered resolved on Feb. 14.

Breckenridge Terrace: 3 cases
Summit County officials reported the outbreak on Jan. 22. The first case was confirmed on Jan. 2. The outbreak was considered resolved on Feb. 22.

Peak 8 Properties Housekeeping, Breckenridge: 7 cases
Summit County officials reported the outbreak on Jan. 22. The first case was confirmed on Jan. 7. The outbreak was resolved on Feb. 19.

Summit County Preschool, Frisco: 3 cases
Summit County officials reported the outbreak on Jan. 22. The first case was confirmed on Jan. 8. The outbreak was reported resolved March 23.

Dillon Valley Elementary: 2 cases
Summit County officials reported the outbreak on Jan. 22. The first case was confirmed on Jan. 5. The outbreak was considered resolved on Feb. 12.

Base operations and parking, Copper Mountain: 6 cases
Summit County officials reported the outbreak on Jan. 22. The first case was confirmed on Dec. 23. The outbreak was considered resolved on Feb. 9.

Guest Services, Copper Mountain: 12
Summit County officials reported the outbreak on Jan. 22. The first case was confirmed on Dec. 21. The outbreak was considered resolved Feb. 27.

Downhill Dukes, Copper Mountain: 4 cases
Summit County officials reported the outbreak on Jan. 22. The first case was confirmed on Dec. 19. The outbreak was considered resolved on Feb. 7.

Keystone Ski Resort, ticket scanning: 2 cases
Summit County officials reported the outbreak on Jan. 15. The first case was confirmed on Dec. 29. The outbreak was considered resolved on Feb. 3.

Summit County Sheriff’s Office, Breckenridge: 3 cases
Summit County officials reported the outbreak on Jan. 15. The first case was confirmed on Jan. 4. The outbreak was considered resolved on Feb. 22.

Starbucks, Breckenridge: 3 cases
Summit County officials reported the outbreak on Jan. 15. The first case was confirmed on Jan. 5. The outbreak was considered resolved on Feb. 4.

Breckenridge Ski Resort, lift operations: 2 cases
Summit County officials reported the outbreak on Jan. 15. The first case was confirmed on Dec. 26. The outbreak was considered resolved on Jan. 27.

Wells Fargo, Frisco: 2 cases
Summit County officials reported the outbreak on Jan. 8. The first case was confirmed on Dec. 14. The outbreak was considered resolved on Jan. 27.

Grand Timber Lodge, Breckenridge: 2 cases
Summit County officials reported the outbreak on Jan. 8. The first case was confirmed on Dec. 17. The outbreak was considered resolved March 1.

Dillon Dam Brewery: 2 cases
Summit County officials reported the second outbreak at the restaurant on Jan. 8. The first case was confirmed on Jan. 1. The outbreak was considered resolved on Jan. 29.

Division 7 Insulation, Silverthorne: 2 cases
Summit County officials reported the outbreak on Jan. 8. The first case was confirmed on Dec. 19. The outbreak was considered resolved on Jan. 29.

Perfect Service Cleaning: 6 cases
Summit County officials reported the outbreak on Jan. 8. The first case was confirmed on Dec. 13. The outbreak was considered resolved on Jan. 23.

Social gathering at Copper Mountain: 9 cases
On Jan. 8, Summit County officials reported the outbreak, which was the result of a social gathering that took place on Jan. 5. The first case among those in the outbreak was confirmed on Dec. 19. The outbreak was considered resolved on Jan. 25.

Keystone Ski School product sales: 2 cases
Summit County officials reported the outbreak on Jan. 8. The first case was confirmed on Dec. 11. The outbreak was considered resolved on Jan. 18.

Keystone River Run rental operation: 2 cases
Summit County officials reported the outbreak on Jan. 8. The first case was confirmed on Dec. 5. The outbreak was resolved on Jan. 7.

Keystone Ski Resort, lift operations: 3 cases
Summit County officials reported the outbreak on Jan. 5. The first case was confirmed on Nov. 15. The outbreak was resolved on Dec. 29. An oversight caused the county’s team to confuse the lift operations outbreak with an earlier outbreak among lift maintenance workers at the resort, public health spokesperson Nicole Valentine said.

Atma Prema Day Spa & Salon, Frisco: 2 cases
Summit County officials reported the outbreak on Jan. 1. The first case was confirmed on Dec. 16. The outbreak was considered resolved on Jan. 18.

Empire Burger, Breckenridge: 3 cases
Summit County officials reported the outbreak on Jan. 1. The first case was confirmed on Dec. 18. The outbreak was considered resolved Jan. 30.

Breckenridge Market & Liquor: 3 cases
Summit County officials reported the outbreak on Jan. 1. The first case was confirmed on Dec. 15. The outbreak was considered resolved Jan. 31.

Skywalk Deli at Beaver Run Resort, Breckenridge: 4 cases
Summit County officials reported the outbreak on Jan. 1. The first case was confirmed on Dec. 25. The outbreak was considered resolved on Jan. 22.

Starbucks, Frisco: 3 cases
Summit County officials reported the outbreak on Jan. 1. The first case was confirmed on Dec. 16. The outbreak was considered resolved on Jan. 18.

Ice Castles, Dillon: 3 cases
Summit County officials reported the outbreak on Jan. 1. The first case was confirmed on Dec. 12. The outbreak was considered resolved on Jan. 18.

Breckenridge Ski Resort, lift maintenance: 2 cases
Summit County officials reported an outbreak among lift maintenance workers on Jan. 1. The first case was confirmed on Dec. 16. The outbreak was considered resolved on Dec. 31.

Summit County Jail, Breckenridge: 8 cases
Summit County officials reported an outbreak at the jail on Dec. 25. The first case was confirmed on Dec. 1. The outbreak was considered resolved Jan. 22.

Dream Home Frisco: 2 cases
Summit County officials reported an outbreak at the Dream Home Frisco warehouse on Dec. 25. The first case was confirmed on Dec. 9. The outbreak was considered resolved on Jan. 13.

Breckenridge Grand Vacations: 4 cases
Summit County officials reported the outbreak on Dec. 25. The first case was confirmed on Dec. 1. The outbreak is was considered resolved on Jan. 6.

Natural Beauty Group, Silverthorne: 4 cases
Summit County officials reported the outbreak on Dec. 25. The first case was confirmed on Dec. 11. The outbreak was considered resolved on Jan. 12.

Keystone Ski Resort, mountain safety: 2 cases
Summit County officials reported the outbreak on Dec. 25. The first case was confirmed on Nov. 29. The outbreak was considered resolved on Jan. 6.

Keystone Lodge: 4 cases
Summit County officials reported the outbreak on Dec. 25. The first case was confirmed on Dec. 5. The outbreak was considered resolved on Jan. 11.

Keystone Ski Resort, lift maintenance: 2 cases
Summit County officials reported the outbreak among lift maintenance workers on Dec. 25. The first case was confirmed on Nov. 24. The outbreak was considered resolved on Dec. 30.

Breckenridge Ski Resort, lift operations: 3 cases
Summit County officials reported the outbreak among lift operations workers on Dec. 25. The first case was confirmed on Nov. 29. The outbreak was considered resolved on Dec. 31.

Summit Community Care Clinic, Frisco: 3 cases
Summit County officials reported the outbreak among main medical workers at the clinic on Dec. 18. The first case was confirmed on Dec. 3. The outbreak was considered resolved on Jan. 6.

Columbia, Breckenridge: 2 cases
Summit County officials reported the outbreak on Dec. 18. The first case was confirmed on Dec. 3. The outbreak was considered resolved on Jan. 5.

Colorado Mountain Cleaners, Silverthorne: 4 cases
Summit County officials reported the outbreak on Dec. 18. The first case was confirmed on Nov. 22. The outbreak was considered resolved on Dec. 30.

Mountain Thunder Lodge, Breckenridge: 2 cases
Summit County officials reported the outbreak among maintenance workers on Dec. 18. The first case was confirmed on Nov. 14. The outbreak was considered resolved on Dec. 21.

Breckenridge Ski School: 3 cases
Summit County officials reported the outbreak among administration at the ski school on Dec. 18. The first case was confirmed on Nov. 3. The outbreak was considered resolved on Dec. 21.

Sunrise Apartments, Keystone: 4 cases
Summit County officials reported the outbreak at the employee housing facility on Dec. 18. The first case was confirmed on Nov. 24. The outbreak was considered resolved on Dec. 30.

Bath and Body Works, Silverthorne: 3 cases
Summit County officials reported the outbreak on Dec. 18. The first case was confirmed on Nov. 29. The outbreak was considered resolved on Jan. 7.

Harmony Health Massage, Breckenridge: 2 cases
Summit County officials reported the outbreak on Dec. 18. The first case was confirmed on Nov. 9. The outbreak was considered resolved on Dec. 22.

Motherloaded Tavern, Breckenridge: 5 cases
Summit County officials reported the outbreak on Dec. 18. The first case was confirmed on Nov. 27. The outbreak was considered resolved on Jan. 5.

Summit High School: 2 cases
The Summit School District reported an outbreak among one student and one teacher in a cohort at the high school on Dec. 17. The student and teacher have been instructed to isolate, according to a news release. The rest of the student and teacher’s cohort are in quarantine, according to the release. The outbreak was considered resolved on Jan. 7.

Dillon Family Dental: 4 cases
Summit County officials reported the outbreak on Dec. 11. The first case was confirmed on Nov. 18. The outbreak was considered resolved on Jan. 5.

Fatty’s Pizzeria, Breckenridge: 2 cases
Summit County officials reported the outbreak on Dec. 11. The first case was confirmed on Nov. 24. The outbreak was considered resolved on Dec. 23.

Summit County Justice Center, Breckenridge: 2 cases
Summit County officials reported the outbreak on Dec. 11. The first case was confirmed on Nov. 9. The outbreak was considered resolved on Dec. 17.

Summit Automotive Group, Silverthorne: 3 cases
Summit County officials reported the outbreak on Dec. 11. The first case was confirmed on Nov. 14. The outbreak was considered resolved on Dec. 30.

McDonald’s, Silverthorne: 3 cases
Summit County officials reported the outbreak on Dec. 11. The first case was confirmed on Nov. 28. The outbreak was considered resolved on Jan. 7.

6th Alley Bar & Grill, Arapahoe Basin: 2 cases
Summit County officials reported the outbreak on Dec. 11. The first case was confirmed on Nov. 23. The outbreak was considered resolved on Dec. 30.

Mountain House Food Court & Coffee Corner, Keystone resort: 2 cases
Summit County officials reported the outbreak at the food court on Dec. 11. The first case was confirmed on Nov. 8. The outbreak was considered resolved on Dec. 11.

Breckenridge Grand Vacations sales staff, Breckenridge: 16 cases

Summit County officials reported an outbreak of at least 16 cases among sales staff and contracted workers at the company on Dec. 11. The county began investigating the outbreak on Nov. 25.

According to a news release, the company had COVID-19 rules, such as mask wearing, disinfection and symptom checks, in place. However, mask use among employees was “sporadic,” and employees were using the break room and participating in buffet lunches. Additionally, the company had been holding in-person meetings of more than 20 people.

As soon as the outbreak was confirmed, the company closed for 12 days, CEO Mike Dudick said in the news release. Dudick added that the company will be evaluating its COVID-19 policies based on what it learned from the outbreak. The outbreak was considered resolved on Jan. 6.

Nuevo Vallarta, Frisco: 5 cases
Summit County reported an outbreak of five cases at the restaurant on Dec. 4. The county confirmed the first positive case on Oct. 20. The outbreak was considered resolved on Dec. 7.

Bighorn Bistro and Bar, Keystone: 2 cases
Summit County reported an outbreak of two cases at the restaurant on Dec. 4. The county confirmed the first positive case on Nov. 14. The outbreak was considered resolved on Dec. 22.

Broken Compass Brewing, Breckenridge: 4 cases
Summit County reported an outbreak of four cases at the restaurant on Dec. 4. The county confirmed the first positive case on Nov. 14. The outbreak was considered resolved on Dec. 21.

Summit County Community and Senior Center, Frisco: 2 cases
Summit County reported an outbreak of two cases at the community and senior center on Dec. 4. The county confirmed the first positive case on Nov. 20. The outbreak was considered resolved on Dec. 21.

Adult ski school at Breckenridge Ski Resort: 2 cases
Summit County reported an outbreak of two cases at the ski school at Peak 8 on Dec. 4. The county confirmed the first positive case on Nov. 10. The outbreak was considered resolved on Dec. 23.

Chimayo Mexican Grill, Frisco: 3 cases
Summit County reported an outbreak of three cases at the restaurant on Dec. 4. The county confirmed the first positive case on Nov. 16. The outbreak was considered resolved on Dec. 21.

Ticket scanning at Breckenridge Ski Resort: 2 cases
Summit County reported an outbreak of two cases as a result of ticket scanning at Peak 8 on Dec. 4. The county confirmed the first positive case on Nov. 13. The outbreak was considered resolved on Dec. 14.

Upper Blue Elementary, Breckenridge: 3 cases
Summit School District spokesperson Mikki Grebetz confirmed an outbreak among one teacher and two students at the school on Nov. 27. The outbreak was considered resolved on Dec. 30.

Timberline Learning Center, Breckenridge: 5 cases
Summit County reported an outbreak of five cases at the day care center on Nov. 25. Public health confirmed the first positive case on Nov. 22. The outbreak was considered resolved on Dec. 30.

Dillon Valley Elementary first grade cohort: 2 cases
The Summit School District reported an outbreak of two cases among one teacher and one scholar at the school on Nov. 19. Public health confirmed the first positive case on Nov. 18. The outbreak was considered resolved on Dec. 15.

Silverthorne Elementary first grade cohort: 2 cases
The Summit School District reported an outbreak of two cases among teachers at the school on Nov. 19. Public health confirmed the first positive case on Nov. 16. The outbreak was considered resolved on Dec. 14.

Lululemon, Breckenridge: 3 cases
Summit County reported an outbreak of three cases at the store on Nov. 25. Public health confirmed the first positive case on Nov. 6. The outbreak was considered resolved on Dec. 10.

Laser Graphics, Breckenridge: 2 cases
Summit County reported an outbreak of two cases at the store on Nov. 25. Public health confirmed the first positive case on Nov. 16. The outbreak was considered resolved on Dec. 10.

Lowe’s, Silverthorne: 2 cases
Summit County reported an outbreak of two cases at the store on Nov. 25. Public health confirmed the first positive case on Nov. 7. The outbreak was considered resolved on Dec. 22.

Birthday party, Frisco: 2 cases
Summit County reported an outbreak as a result of the party on Nov. 20. Public health confirmed the first positive case on Nov. 4. The outbreak was considered resolved on Dec. 7.

Murdoch’s, Silverthorne: 2 cases
Summit County reported an outbreak at the store on Nov. 20. Public health confirmed the first positive case on Nov. 1. The outbreak was considered resolved on Dec. 8.

Halloween social gathering, Breckenridge: 4 cases
Summit County reported an outbreak as a result of the gathering on Nov. 20. Public health confirmed the first positive case on Nov. 6. The outbreak was considered resolved on Dec. 7.

Red, White & Blue Fire Department: 3 cases
Summit County reported the outbreak at the department on Nov. 20. Public health confirmed the first positive case on Nov. 7. The outbreak was considered resolved on Dec. 8.

Breckenridge Grand Vacations Infinity Spa: 3 cases
Summit County reported the outbreak at the department on Nov. 20. Public health confirmed the first positive case on Oct. 28. The outbreak was considered resolved on Dec. 3.

Breckenridge Elementary School: 3 cases

Public health officials reported an outbreak of three cases among a teacher and two students at the school on Nov. 13.

Public health received the first positive test results on Nov. 3, according to a news release.

The school is remaining open to staff and students who are not considered close contacts of the cases, according to the release. The outbreak was considered resolved on Dec. 8.

Frisco Elementary School, first grade cohort: 2 cases
Summit County reported the outbreak at the school on Nov. 20. Public health confirmed the first case on Nov. 1. The outbreak was considered resolved on Dec. 2.

RGB, Inc., Breckenridge: 4 cases
Summit County reported the outbreak on Nov. 20. Public health confirmed the first case on Nov. 7. The outbreak was resolved on Dec. 11.

Downstairs at Eric’s, Breckenridge: 3 cases
Summit County reported the third outbreak at the restaurant on Nov. 20. Public health confirmed the first positive case on Oct. 30. The outbreak was considered resolved on Dec. 8.

The Goat, Keystone: 2 cases
Summit County reported an outbreak of two cases at the restaurant on Nov. 20. Public health confirmed the first positive case on Nov. 7.

Bread & Salt, Frisco: 4 cases
Summit County reported an outbreak of four cases at the restaurant on Nov. 20. Public health confirmed the first positive case on Nov. 4. The outbreak was considered resolved on Dec. 9.

Frisco Elementary School third grade cohort: 3 cases

Public health officials reported an outbreak of three cases among one teacher and two students at the school on Nov. 6.

The teacher was tested on Nov. 2 and the two students on Nov. 3 and 4. Public health received the first positive result on Nov. 3.

Summit School District reported one quarantine in place at the school on Nov. 6. All other identified close contacts have been place in quarantine as well, according to a news release. The outbreak was considered resolved on Dec. 2.

Blue Stag Saloon, Breckenridge: 4 cases
Summit County reported the outbreak at the restaurant on Nov. 13. The county confirmed the first case of the outbreak on Nov. 1. The outbreak was considered resolved on Dec. 2.

Open Arms Christian Lutheran Church, Breckenridge: 3 cases
Summit County reported the outbreak at the church on Nov. 13. The county confirmed the first case on Oct. 30. The outbreak was considered resolved on Dec. 2.

Frisco Police Department: 2 cases
Summit County reported the outbreak at the police department on Nov. 13. The county confirmed the first case on Oct. 29. The outbreak was considered resolved on Dec. 3.

Alpine Dance Academy: 2 cases
Summit County reported the outbreak of two cases at the dance studio on Nov. 13. The county confirmed the first case on Oct. 28. The outbreak was considered resolved on Dec. 2.

Blue Valley Ski Rentals, Silverthorne: 3 cases
Summit County reported the outbreak of three cases at the rental shop on Nov. 13. The county confirmed the first case on Oct. 27. The outbreak was considered resolved on Dec. 1.

Hacienda Real, Frisco: 2 cases
Summit County reported the outbreak of two cases at the restaurant on Nov. 13. The county confirmed the first case on Oct. 25. The outbreak was considered resolved on Nov. 23.

Social gathering at Summit Cove: 3 cases
A social gathering in the Summit Cove neighborhood led to three cases of the virus. Summit County reported the outbreak on Nov. 13. The county confirmed the first positive case on Oct. 24. The outbreak was considered resolved on Nov. 23.

Keystone River Run Housekeeping: 3 cases
Summit County reported three cases of the virus among housekeeping staff on Nov. 13. The county confirmed the first positive case of the outbreak on Oct. 24. The outbreak was considered resolved on Dec. 3.

Sky Ranch Contractors: 5 cases
Summit County reported five cases of the virus at Sky Ranch Contractors on Nov. 13. The county confirmed the first positive case of the outbreak on Oct. 22. The outbreak was considered resolved on Nov. 23.

Breckenridge Building Center: 2 cases
Summit County reported an outbreak of two cases among employees of Breckenridge Building Center on Oct. 31. The first case was confirmed positive on Oct. 21. The outbreak was considered resolved on Nov. 23.

Peak 8 Properties Soothe Spa, Breckenridge: 2 cases
Summit County reported an outbreak of two cases among employees of the Peak 8 Properties Soothe Spa in Breckenridge on Oct. 31. The first case was confirmed positive on Oct. 14. The outbreak was considered resolved on Nov. 23.

Mi Casa, Breckenridge: 5 cases
Summit County reported an outbreak of five cases among employees of Mi Casa on Oct. 31. The first case was confirmed positive on Oct. 18. The outbreak was considered resolved on Dec. 3.

Summit High School basketball team, Breckenridge: 2 cases
Summit County reported the outbreak of two cases among players on Summit High School’s basketball team. The two players contracted the virus through offseason training, according to a news release. Public health received the first positive test result Oct. 23. The outbreak was considered resolved on Nov. 25.

Advanced Dermatology, Frisco: 2 cases
Summit County reported an outbreak of two cases among employees of Advanced Dermatology. The two employees were tested on Oct. 20 and 23. Public Health received positive test results on Oct. 20 and 25. The outbreak was considered resolved on Nov. 23.

Social gathering among Summit High School students, Breckenridge: 22 cases

Summit County public health officials are investigating 22 confirmed cases of coronavirus among students at Summit High School, according to an Oct. 28 press release.

Public health officials received most of the positive test results Oct. 16-22 and believe many of the cases stem from a “large” party held Oct. 17. Of attendees at the party, nine have tested positive, including two people who reportedly were under quarantine orders at the time of the gathering.

Health officials scolded the students, and their parents, for a significant contribution to Summit County’s rapidly rising case numbers. Summit County’s 14-day incidence rate of 560 new cases per 100,000 people is the sixth highest in Colorado and could lead to additional restrictions from the state.

The outbreak was considered resolved on Nov. 18.

Little Red Schoolhouse, Breckenridge: 2 cases
Summit County officials reported an outbreak of two cases among employees of Little Red Schoolhouse on Oct. 26. The two employees were tested on Oct. 18 and 23, and the county received positive results on Oct. 21 and 25. The outbreak was considered resolved on Nov. 18.

Peak 8 Properties, Breckenridge: 4 cases

Summit County officials reported an outbreak of two cases of the virus among employees of Peak 8 Properties on Oct. 25. The county’s public health department received positive tests for the two employees Oct. 21 and 25. 

The county has since updated its coronavirus webpage to reflect two more cases of the virus as a result of the outbreak.

One of the employees worked while contagious but was not experiencing any symptoms and was following health guidelines, including physical distancing and mask-wearing, according to a news release from health officials.

“This outbreak demonstrates just how infectious the virus is and that even when you are following recommended physical distancing protocol and using proper PPE, employees can still get sick,” County Manager Scott Vargo said in the release. “For this reason, we are urging the community to be especially cautious right now.” 

The outbreak was considered resolved on Dec. 1.

Dillon Dam Brewery, Dillon: 7 cases

Summit County officials reported an outbreak of two cases of the virus among employees of the brewery Oct. 21. The county’s public health department received positive tests for two employees on Oct. 20. 

The county since updated its coronavirus webpage to add five more cases as a result of the outbreak.

In a news release, public health officials said the brewery has been following all guidelines and been proactive in preventing the spread of the virus among its employees. 

The outbreak was considered resolved on Nov. 23.

Sun Logic, Breckenridge: 11 cases

Summit County officials reported an outbreak of 11 cases among employees of the sunglasses and goggles store Oct. 19. 

The 11 cases were the result of an international company trip, which involved 18 employees in total. Of the 11 cases, 9 are among permanent residents of Summit County. 

Public health officials used the outbreak as an opportunity to warn against unnecessary travel during the pandemic. The outbreak was considered resolved on Nov. 17.

Cornerstone Real Estate Rocky Mountains, Breckenridge: 3 cases

Summit County officials reported an outbreak at the real estate agency Oct. 18. The county received positive test results for two employees Oct. 15 and 16.

The county since added another case to its coronavirus webpage. County officials said the agency had been “extremely proactive” in following all guidelines related to the virus.

This outbreak was considered resolved on Nov. 8.

Summit County Government: 2 cases

Public health reported the outbreak among two employees within a department of Summit County government Oct. 12. The two employees who tested positive frequently traveled to work together.

One of the employees had gone to work while symptomatic and one of the employees held a residential gathering while symptomatic, after being tested and while awaiting results, according to a county news release.

County officials said it’s important for people to quarantine while awaiting test results. The outbreak was considered resolved on Nov. 2.

UPS Customer Center, Silverthorne: 4 cases

Summit County reported the outbreak of four cases among employees of the store Oct. 11.

The store had not been enforcing mask policies, physical distancing requirements or symptom tracking, according to a news release.

Management of the store was not cooperative with public health in providing information about close contacts. Summit County officials were reviewing whether the store had violated the county’s public health order, which could mean a fine of up to $5,000, according to the release.

This outbreak was considered resolved on Nov. 2.

Ollie’s Pub & Grub, Breckenridge: 8 cases

A gathering of about 30 people at the restaurant led to the outbreak among employees, according to a news release. The gathering led to an outbreak of two cases among employees and two cases among non-employees who attended the gathering.

Another person has gotten the virus from the outbreak since the original reporting. The county updated its webpage to reflect three more cases of the virus on Nov. 13.

Gatherings of more than 10 people are a violation of the public health order, which could mean a fine of up to $5,000.

This outbreak was considered resolved on Nov. 2.

Downstairs at Eric’s, Breckenridge: 2 cases

Summit County reported the second outbreak of the virus at Downstairs at Eric’s on Oct. 8. The county received positive test results for the two cases Oct. 1 and 6.

The restaurant had been following proper physical distancing guidelines, with masks required at all times, according to a news release.

This outbreak was considered resolved on Nov. 4.

Briar Rose Chophouse, Breckenridge: 6 cases

Summit County officials reported the outbreak of two cases among employees of the restaurant Oct. 6. The county received positive test results on Oct. 1 and 4.

The county has since added three additional positive cases as a result of the outbreak.

The employee who initially tested positive attended a gathering outside of the restaurant, and employees had been gathering after their shifts for a drink, according to a news release. The outbreak was considered resolved on Dec. 1.

Vacasa Vacation Rentals, Breckenridge: 3 cases

Summit County reported that three housekeepers, who were working at Vacasa Vacation Rentals, tested positive for the virus Sept. 26. The three employees had been carpooling to work together, according to a news release.

Public health officials said the rental agency had not been screening employees for symptoms prior to work.

This outbreak was considered resolved on Oct. 23.

Summit Middle School, Frisco: 2 cases

The Summit School District reported two cases among staff members of the school Sept. 23. No students tested positive in connection to the outbreak.

After the outbreak, the district disinfected and cleaned all surfaces at the school. The outbreak was considered resolved on Oct. 16.

Mountain Lyon Cafe, Silverthorne: 2 cases

Summit County officials received positive test results for the two employees of the restaurant on Sept. 18 and 22.

The restaurant closed temporarily Sept. 19.

According to a news release, the restaurant management is working on implementing a better system for tracking employee symptoms. The outbreak was considered resolved on Oct. 18.

BHH Partners, Breckenridge: 7 cases

Seven employees of BHH Partners tested positive for the virus.

Public health officials found that the employees had not been wearing masks while clients were not in the office, and management had not properly screened employees for symptoms.

Additionally, employees attended a gathering outside of the office Sept. 10 at a restaurant, where masks were not worn while seated. The outbreak was considered resolved on Oct. 18.

Target, Silverthorne: 3 cases

Summit County reported the outbreak among three employees of the store Sept. 16. One of the employees who tested positive worked for two days while symptomatic, according to a news release.

Target worked closely with public health officials to go over sanitation and cleaning procedures after the outbreak. The outbreak was considered resolved on Oct. 7.

Short-term rental party, Breckenridge: 2 cases

Two people tested positive for the virus after a Labor Day weekend party was held at a short-term rental in Breckenridge. About 21 people attended the party at the rental, which was rented from Sept. 4-5.

Everyone who attended the party is believed to be an out-of-county resident, and has since returned to the Denver metro area. The outbreak was considered resolved on Oct. 9.

Big Johnson Construction worksite, Silverthorne: 3 cases

Summit County reported an outbreak among three construction workers at at the 4th Street Crossing worksite in Silverthone on Aug. 22. All three of the construction workers are residents of Colorado Springs.

The three employees had been carpooling together, according to a release.

The outbreak was considered resolved on Sept. 15.

Breckenridge Terrace Apartments, Breckenridge: 5 cases

Summit County reported the outbreak of five cases among people living at Breckenridge Terrace Apartments on July 31.

Although the five people involved in the outbreak live in four separate apartments, some of them had been socializing together, according to a news release.

Public health officials don’t believe the five cases pose a risk to other residents of the complex because the complex has exterior stairwells. The outbreak was considered resolved on Aug. 26.

Innovative Family Dental, Dillon: 2 cases

Summit County officials reported the outbreak among two employees at the dental office on June 26.

Employees of the office were using a shared break room. Summit County officials worked with the dental office to discuss break room sanitation and cleaning procedures.

The outbreak was considered resolved on July 28.

Downstairs at Eric’s, Breckenridge: 5 cases

Summit County reported that four employees of the restaurant tested positive for the virus May 21. The number of cases since grew to five.

Some of the sick employees had socialized together on the week of May 10, according to a news release.

Summit County officials said restaurant owner Eric Mamula was “transparent, vigilant and responsive” in the process of resolving the outbreak. The outbreak was considered resolved on June 23.

Lowe’s, Silverthorne: 3 cases

Summit County reported three cases among employees of Lowe’s in Silverthorne on May 18.

Public health officials received the positive test results for the employees April 27, May 8 and May 16.

Public health officials said the store’s management was responsive in the follow-up to the outbreak. The outbreak was considered resolved on June 9.

City Market, Breckenridge: 19 cases

Summit County reported an initial outbreak of eight cases at the store on April 29, which then grew to 19 cases.

Employees of the store had been using a break room that led to the spread of the virus.

The outbreak was considered resolved on June 9.

The Edge at Copper Mountain: 4 cases

Summit County reported an outbreak of four cases among residents of the employee housing facility at Copper Mountain.

The outbreak was originally reported on March 25.

It was resolved on April 26.