The COVID-19 lull in the U.S. may soon come to an end, as a new family of SARS-CoV-2 variants—nicknamed “FLiRT” variants—begins to spread nationwide. These variants are distant Omicron relatives that ...

The “EG” in EG.5.1 doesn’t mean “for example.” But the EG.5.1 variant of the Covid-19 coronavirus that’s now spreading is yet another example of how the virus will continue to mutate, regardless of ...

Despite intensive public health efforts to grind the COVID-19 pandemic to a halt, the recent emergence of the highly transmissible, extensively drug-resistant and profoundly immune system-evading ...

Two teams of US scientists have completed lab experiments testing the antibodies from vaccinated and infected Americans to see how well they might be able to fend off currently circulating variants of ...