It's a question that scientists have been trying to answer since the start of the pandemic, one that is central to the rancorous political debates over coronavirus vaccine policies: How much immunity ...

Your immune system does a lot of amazing things. Keeping this system strong helps it fight off infections so you can stay healthy. Although you’re born with all the cells of your immune system, it ...

Your immune system defends your body against infections and illnesses. It makes proteins called antibodies that counteract or kill germs, like viruses and bacteria. You get protection, or “immunity,” ...

In a recent study posted to the medRxiv* preprint server, researchers assessed whether loss-of-function (pLOF) variants of type I interferon (IFN) immunity genes are associated with life-threatening ...

Health officials are recommending third doses of the Pfizer/BioNTech vaccine for some people. Experts are also thinking about how natural infection and vaccination may work together in the immune ...

You’ve probably heard the term “herd immunity” used in relation to the COVID-19 pandemic. Some leaders — for example, Boris Johnson, the prime minister of the United Kingdom — suggested it might be a ...

While you should be eating fatty fish every week to strengthen your immunity (as long as your doctor approves), there are ...

People can develop temporary natural immunity after recovering from COVID-19. However, vaccines are the best way to train the immune system to recognize viruses. When a vaccinated person encounters ...