If you've been hopping between arms for booster shots, a new study suggests that your lymph nodes remember exactly where you first got jabbed and perform far better when you return to that same arm.

The Centers for Disease Control and Prevention recommended Thursday that teenagers and adults get updated booster shots from Pfizer or Moderna. The shots — also known as bivalent vaccines —are ...

Only about half of Americans get the seasonal flu shot each year, according to 2021 data from the Centers for Disease Control ...

The fall COVID-19 booster rollout has been slow and inconsistent as vaccine recommendations change this year under a new advisory panel. Getty Images/iStock Photo Stopping by at a pharmacy to get a ...