“Megan Jehn shared how students in Arizona built DIY air filters called ‘Corsi-Rosenthal boxes’ for the school as part of a Stem project — complete with a decorating competition between classrooms” (link to Twitter see @jehnml )

With up to 70% of household transmission beginning with children, fewer infections in schools would also result in fewer infections in the community” /13 t.co/8lRrX3uPAW