Researchers still have a lot to learn about Long COVID—when symptoms linger long after a COVID-19 infection is over—but new data suggest there may be some good news for people infected with the virus ...

In May 2021, the World Health Organization (WHO) announced that key variants of SARS-CoV-2, the virus that causes COVID-19, would be assigned names from the Greek alphabet, in addition to their ...

Two subvariants that have emerged from the soup of Omicron offspring are among the most adept at evading immunity. They appear poised to become dominant in the U.S. and could fuel a new surge.

With the rise of omicron came the fall of long-lasting protection from reinfection with the pandemic coronavirus SARS-CoV-2, according to a study published in Nature. Using population-wide data from ...

Manal Mohammed is a senior lecturer of medical microbiology at the University of Westminster. Since the COVID variant Omicron emerged in late 2021, it has rapidly evolved into multiple subvariants.

Wearing face masks may not have lowered the risk of COVID infection after the first Omicron wave, new research has shown. But that does not mean that face masks aren't useful, regardless. The wearing ...