potentially encouraging news for parents eager to get their children younger than 5 vaccinated against covid. dr. scott gottlieb, a former fda chief and pfizer board member, predicting pfizer's pediatric shot for those 6 months to 4 years old could be submitted for authorization in weeks, if officials opt for a two-dose regimen versus three doses now under consideration. >> getting two doses into a child can provide baseline immunity that protects them from severe disease, from hospitalization. it could be out much sooner, perhaps as early as early march. >> reporter: while it may be welcome news for some parents, covid vaccines have stalled among eligible children 5 and up, with less than 40% fully vaccinated. still, the u.s. is showing signs of turning a corner on the omicron surge. >> i think we're collectively breathing a large sigh of relief right now. we've had over a week of a slow but steady decline. >> reporter: hospital admissions were down by more than 11% in the last week. yet in some pockets of the