booster dose four only four months after the prior vaccination. so there is some evidence that immunity seems to start waning before that six month window that we were in addition considering. >> of course advavaccines only if you are vaccinated and there is a lagging federal gigure amo children. it is about 5%. and israel, 2%. do you expect this news and the time that has entrance spiraled si transpired, do you think that that will increase the number of vaccinations that we'll see among children? >> i can only hope that it will increase the number of children vaccinated. but i think the decreasing number or the low number of children vaccinated has a lot to do with covid misinformation on two different fronts. there is misinformation on how covid can affect children with a lot of people still thinking that if htheir child contracts