COVID-19 earlier this month and after 10 days of isolation with mild symptoms were ready to go back to school. Distancing more effective than school closures in reducing COVID-19 deaths, study finds But a caseworker at the Toronto Public Health (TPH) told the family that the children would have to stay home for an additional two weeks and would be able to return to school after the parents completed their 14-day isolation for being a close contact.The parents’ isolation period is supposed to start at day 10 when the children are deemed non-contagious, they were told.“It really doesn’t make a whole lot of sense to me that my daughter is going to have to miss potentially a month … of school because of the same illness,” Colacci, 36, told.