As summer winds down and children and teenagers across the U.S. head back to school, it also means updated COVID-19 vaccines are around the corner. This week, the Food and Drug Administration approved ...

The Pfizer COVID-19 vaccine remains 90% effective at reducing a person's risk of hospitalization from the virus six months after it is administered, a new study has found. This is true even in the ...

When Brett Cavin went to a pharmacy last week in Gresham, Oregon, to pick up his inhaler prescription for his asthma, he was turned away and warned it could take up to a week for the pharmacy to ...

Medical experts recommend that individuals receive both flu and COVID-19 vaccinations before the end of October to ensure immunity before viral infections peak during the winter months.

Watch ABC News live news stream and get 24/7 latest, breaking news coverage, and live video. As summer winds down and children and teenagers across the U.S. head back to school, it also means updated ...