The physiological relationship between COVID infections, mothers and fetuses at different stages of a pregnancy is complex, said Angela Rasmussen, a virologist at the University of Saskatchewan.

After federal health officials made abrupt changes to US Covid-19 vaccine recommendations for pregnant women last month, there’s new confusion and uncertainty about who can get the shots — and ...

Shots - Health News RFK Jr. says COVID shots no longer recommended for kids, pregnant women May 27, 202512:47 PM ET Heard on All Things Considered Rob Stein ...