Why some kids are testing positive for COVID for weeks and even months in the delta surge (San Francisco Chronicle)

People who test positive for the coronavirus can continue to do so long after they are no longer contagious, especially if they are not vaccinated — a pandemic wrinkle magnified during the delta surge that has created some confusion and concern for parents of unvaccinated school-age children who have returned to Bay Area classrooms.

When an initial test comes back positive, federal and California health guidelines recommend staying home and isolating for 10 days. In cases involving schoolchildren, officials communicate with families on next steps to determine when the child is allowed to return to the classroom — but a subsequent negative test is not among the requirements.

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