COVID-19 vaccines lower the risk of getting sick, seriously ill or dying from the disease. But how do the different types of COVID-19 vaccines work? Each COVID-19 vaccine causes the immune system to ...

Medical experts repeatedly reiterate how vital vaccinations are to global health. As of last spring, the World Health Organization (WHO) estimated that worldwide immunization efforts have saved at ...

A shot of a shingles vaccine blocks reactivation, potentially preventing the virus from triggering brain inflammation that ...

What is an RNA vaccine? RNA vaccines, or messenger RNA (mRNA) vaccines, are a relatively new type of vaccine that delivers mRNA molecules to human cells, instructing them to produce specific antigens.

(NEXSTAR) – An advance in vaccine technology is showing promise toward fighting the second-most common cause of death in the United States, cancer. Scientists are working on developing mRNA vaccines ...

We think of our body clock ticking over on a 24-hour cycle, but evidence is growing that it has seasonal rhythms, which could ...

Vaccinations used to seem simple. Your doctor would tell you which to get, and you’d roll up your sleeve at the office or a nearby pharmacy. Now we’re seeing changing recommendations, and some people ...

No. The currently approved Ebola vaccine used for outbreak response is called Ervebo. Ervebo protects against one species of Ebola virus, called Zaire ebolavirus. It has not been proven to protect ...