The debate around #schoolsreopening during #Covid19 has been largely grounded in conjecture to this point - we're proud to contribute DATA to the discussion - a thread from our experiences testing an entire K-12 school population from August thru December.medrxiv.org/content/10.110… 2)Kids do contract+transmit #COVID19, but rates of illness when they are IN school are LOWER than when OUT of school. Suggests that children/communities may be at lower risk when in school -poss due to mitigation measures +controlled environment not possible when out of school