The varicella-zoster virus causes both chickenpox and shingles infections. Initially, the virus causes a chickenpox infection. If it reactivates later, shingles can develop. The chickenpox vaccine ...

Find out how different vaccines for the coronavirus cause your body to create antibodies that fight the virus.

Moderna’s mRNA influenza vaccine faces US regulatory delays after a refusal-to-file letter from top FDA official Dr Vinay Prasad.

A new vaccine design uses folded DNA to steer the immune system toward producing the rare immune cells needed to make protective antibodies against HIV.

Blood tests revealed that the beverage elicited an immune response, according to preliminary research. But far more safety ...

Nipah virus fatality rates are 40% to 75%. It's typically spread between humans and bats through people consuming ...

Because measles is so contagious, experts say that vaccination rates need to be above about 95 percent to stem the spread of ...

Central California and rural Northern California are reporting the highest levels of flu in the state, with 23% and 26% flu ...

Malawi has launched a nationwide polio vaccination campaign after traces of a vaccine-derived polio virus were discovered in sewage water in Blantyre. Health workers are administering 1.7 million ...

THE VACCINE MAKER MODERNA decided this past week to tell the world about bad news it had received from the federal government ...

As bird flu continues to circulate in animals and spill over into humans, researchers are racing to stop it before it adapts ...