Bill Cassidy, the senator who secured Robert F. Kennedy Jr.’s promise to protect vaccines, will question the health secretary ...

Clarksburg, California — On a sunny August morning in this agricultural town, before temperatures soared to 103 degrees, U.S. Health and Human Services Secretary Xavier Becerra stood outside the ...

The CDC, a $9.2 billion-a-year agency tasked with reviewing life-saving vaccines, monitoring diseases and watching for ...