CNN CNN Newsroom With Pamela Brown June 4, 2024 23:06:00
Agents that we thought were in our history, of them coming back to our country. and what it says to me as a pediatrician and a parent is it's so important to ensure that our children are vaccinated fully and on time, so that if and when things like polio are reintroduced to our country, our children are safe and protected. there are a lot of children out there who are not fully vaccinated. >> cnn medical analyst dr. leana wen joins me now with more. dr. wen, this is very troubling. that's probably an understatement to some degree. how much of it, how much of the vaccine rates, how much is poli...