The immune system’s first encounter with a virus or vaccine establishes a “starting template” that shapes its response to new ...

In a recent study in Nature Microbiology, researchers compared severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant of concern (VOC) replication in human cell lines and primary ...

Scientists are narrowing in on the fastest-growing COVID-19 variant, learning more about the strain that has coincided with a rise in cases as Americans head into the holidays. The JN.1 variant now ...

The race is on for new treatments that stand up to omicron's explosive spread. With omicron's explosive spread threatening to outpace current COVID-19 treatments, the race is on to find new options ...

The omicron BQ coronavirus subvariants have risen to dominance in the U.S. as people gather and travel for the Thanksgiving holiday, putting people with compromised immune systems at increased risk.

The coronavirus has come a long way since 2020. While the days of sanitizing Amazon packages and standing six feet apart may feel like they’re behind us (and they very well may be), the SARS-Co-V-2 ...

For months, a purported warning has spread on social media about an alleged "new COVID-Omicron XBB variant" — a new strain of the coronavirus that has spread globally since early 2020. Framed as ...

The dominant variant of the coronavirus has proved to be not only staggeringly infectious, but an evolutionary marvel. By Carl Zimmer By November 2021, nearly two years after the coronavirus emerged ...

The U.S. Centers for Disease Control and Prevention announced Thursday it is tracking a recently discovered COVID-19 strain, BA.2.86, after a case of the highly mutated variant was discovered in ...

There's a lot we need to learn — and fast — about the omicron variant. Federal health officials have been scrambling since Thanksgiving to gather critical information to inform the U.S. response. Key ...