XEC is also an offshoot of omicron, the widely spread variant that formed in 2021. According to experts, it has some of omicron’s features, too — like less severe symptoms and easy transmissibility.

Pfizer's and Moderna's formulas have been the go-to on pharmacy shelves, but Novavax remains an important option.

Catching the virus that causes COVID-19 or getting a COVID-19 vaccination gives you protection, also called immunity, from the virus. But over time, that protection seems to ...

While West Nile virus and EEE are viral infections that most commonly affect horses, humans and birds, neither is zoonotic ...

One major reason why it has been difficult to develop an effective HIV vaccine is that the virus mutates very rapidly, ...

The XEC COVID variant is in the U.S. A UT infectious disease specialist says there's likely no need to panic, as the strain ...

The new "XEC" COVID-19 variant spreading rapidly in Europe has arrived in the US. What are the symptoms, will it cause a fall ...

We are stronger when we are all protected against respiratory diseases,” said Dr. Tomas Aragon, public health officer for ...

The US Food and Drug Administration on Friday approved the first flu vaccine that does not have to be administered by a ...

Yet many people don’t seem to recognize this—and this is a missed opportunity. Helping people to rethink side effects as ...

The new and contagious XEC COVID-19 variant is spreading rapidly in several countries. Will it cause a surge in the U.S.?

A new COVID variant has emerged, with some scientists saying it could soon be the dominant strain of the virus. While global ...