The side effects of newly discovered COVID strain XEC might not be more severe, but appears to be more contagious, ...

The winter season ushers in a new globally spreading COVID-19 variant called XEC, a mix of KS.1.1 and KP.3.3, both from the ...

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

With COVID cases on the rise in many countries, the race to find an effective vaccine is becoming a more pressing concern ...

The most recent COVID-19 vaccines from Moderna and Pfizer were approved by the FDA on Aug. 24, with the CDC recommending Americans get their updated shots ahead of the winter virus season. Amish ...

MIT researchers have developed a new HIV vaccination method that generates a strong immune response with just two doses, one ...

Researchers have shown that they can generate a strong immune response against HIV with two doses of a vaccine given one week apart.

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

The F.D.A. authorized AstraZeneca’s treatment to be given outside a health care setting, although it will still need a ...

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

Researchers refer to the XEC variant, which is in the omicron family, as a recombinant virus — a hybrid of two other variants ...

Covid XEC is a new variant of Coronavirus has appeared in Germany on June. After that it is spreading rapidly across Europe.