recent study from the cdc that showed when a teacher was actually infected and not wearing a mask, that that teacher, in fact, infected half of the class. so we see across the country when masks are being worn, the incidents of spread of covid-19, masks do work. there are differences in masks quality of masks, the better the fit. the more effective it s going it be for your child. i want to put an exclamation point on that if i could. what we are seeing across the country in realtime in places where mitigation strategies are not taken as seriously, there is more school disruption and there are higher number of students in emergency rooms so they do work. bret: okay, well, here is carla, she is a grandmother. take a listen. fidgety in school. they are not going to keep it in their. even aconsults do that i can t