It might be the next best thing to a coronavirus vaccine. Scientists have devised a way to use the antibody-rich blood plasma of Covid-19 survivors for an upper-arm injection that they say could ...

Dear Dr. Roach: I have had over 50 vaccinations in my life (I’m 78), most of them while I was in the military. I have often wondered how the vaccine spreads throughout the body, as the shots are ...

Twice a year, a nurse slides a small needle under the skin of your upper arm. Thirty seconds later, you are done. No daily ...