joining me now to answer some of your questions is assistant professor of pediatrics and emergency medicine at columbia university medical center. dr. deci, let's get right to it. amanda asks, why does everyone keep saying schools are saech, it depend on the school's attention to masking and testing. mine is not safe. >> thank you for having me today. i understand this is a time when parents are scared about this contagious omicron variant. parents should be reassured that we have a year's worth of data that shows that transmission in schools is really low. schools are safe. as parents, we can do what we can to prevent transmission in schools, and that includes really effecting high quality masks for your children, take time to get a fitted mask, multilayer mask or mask with a filter and make sure you practice that at home, as well as practicing hand washing and