Pfizer said it did not identify any safety concerns with the 3-microgram vaccine doses in children six months to 4-years-old.
Hospitalizations of children with Covid are rising as the highly contagious omicron variant has rapidly spread through communities across the U.S.
Walensky said earlier this month there's no indication that the omicron variant causes more severe illness in childrenShe said the delta variant also led to an increase in hospitalizations among children, but research later indicated that the variant did not make kids more sick compared with past variants