As measles cases continue to spread across the United States, experts reveal who may need another vaccine dose and who is ...

For those 65 and over, the Food and Drug Administration has approved high-dose flu vaccines. These vaccines contain four times as much immune-stimulating antigen than the standard-dose vaccine.

Former CDC director Dr. Rochelle Walensky called for stronger, nationwide guidance on infant measles vaccine doses in a new opinion paper published Friday.