An Independent School • Grades 5-12

If a student tests positive for COVID-19 through on-campus testing, Lakeside will contact their parents/guardians and share the following guidance. Students who receive a positive result from off-campus testing should isolate, alert the school, and follow the same guidance. Unvaccinated students may receive additional instructions from the school.

If a student tests positive: 

  • The student must isolate for five days. For example, if a student tests positive on Thursday, Jan. 13, they must isolate until Tuesday, Jan. 18. Lakeside is following the CDC guidelines for isolation protocols. The CDC states that a person who tests positive for COVID must isolate for five days. Here is a resource from the CDC on how to calculate the lengths of isolation and quarantine.
  • The student must take an antigen test the evening of their fifth day in isolation. For example, if a student tests positive on Thursday, Jan. 13, they must take an antigen test the evening of Tuesday, Jan. 18. If you are not able to secure your own antigen test, email
  • Send the antigen test results to
  • If the student tests negative on that antigen test and they do not have symptoms, they may return to campus on the sixth day after their original positive test. For example, if a student tests positive on Thursday, Jan. 13 and negative on Tuesday, Jan. 18, they may return to campus on Wednesday, Jan. 19. 
  • Once they return to school, they must: 
    • Wear a high-quality and well-fitting mask at all times. N95 and KN95 masks are strongly encouraged.
    • Keep their Trace app on at all times. 
    • Be extremely careful to practice personal safety measures (washing hands, distancing, etc.). 
    • Follow the school’s directions about lunch protocols (when masks are removed). 
  • If a student tests positive, they will receive an email regarding a remote learning plan, if they feel well enough to participate in class. Only students who have tested positive for COVID and are well enough to engage in classes receive remote learning plans. Students who are sick should focus on resting and regaining their health.
  • Additionally, if a student is an athlete playing an Upper School winter sport, then: 
    • Because of the nature of athletics, even if the antigen test from day five of their isolation is negative, they cannot participate in team activities until 10 days after their initial test.
    • If, in the meantime, they receive a negative PCR test and submit it to, they can return to team activities the next day.
    • Questions about COVID and athletics participation should be directed to Director of Athletics Chris Hartley at

Students who test positive for COVID need to follow the health and safety procedures recommended by the CDC.

  • While isolating, students should not leave home except to receive medical care. 
  • Monitor symptoms. If students have an emergency warning sign (including trouble breathing), seek emergency medical care immediately.
  • The student should stay in a separate room from other household members, if possible.
  • They should use a separate bathroom, if possible.
  • Take steps to improve ventilation at home, if possible.
  • The student should avoid contact with other members of the household and pets.
  • They should not share personal household items, like cups, towels, and utensils.
  • They should wear a well-fitting mask when they need to be around other people.

Contact your medical provider if you have questions about your student’s health. If you have any questions about COVID isolation and quarantine, please call King County’s COVID-19 Call Center between 8 a.m – 7 p.m. at 206-477-3977. Interpreters are available.