Megan Ranney, director of the Brown-Lifespan Center for Digital Health.
Rare breakthough infections have milder outcomesWhile the Moderna, Pfizer/BioNTech and Johnson & Johnson vaccines are highly effective at preventing severe Covid-19, they're not perfect at preventing infection.But even those who get infected down the road after getting vaccinated will likely be less miserable than if they hadn't gotten vaccinated at all.CDC data published research Monday showing those who had rare "breakthrough" infections after one or two doses of vaccine had 40% less virus in their bodies and were 58% less likely to have a fever.For those taking the Pfizer/BioNTech or Moderna vaccines, "This is why everybody needs a second dose."Moderna says 5-year-olds could get vaccine by the fallOn Monday, Moderna CEO Stéphane Bancel said its vaccine will likely be available to children as young as five by the early this fall."I think it's going to be early fall just because we have to go down in age very slowly and carefully," Bancel said at an event hosted on the social media platform Clubhouse.The Pfizer/BioNTech vaccine has already been approved for children as young as 12.