A painless substitute for the hypodermic needle was reported last week. The revolutionary gadget, called the “hypospray,” is a kind of air gun that shoots an injection under the skin in a ...

It you have flu shot side effects at all, they will likely start eight to 12 hours after your shot, says Thomas Russo, M.D., ...

If you miss your flu shot during the recommended window this fall, it’s still worth getting vaccinated, experts claimed.

Despite the CDC recommending an additional shot, there’s no evidence that the mRNA vaccines aren’t working as expected, said ...