The virus that causes COVID-19 continues to mutate. Scientists say that's likely to continue indefinitely, and the virus will ...

As the highly-contagious omicron variant quickly spreads across the country, a respiratory specialist says Americans should expect to see more breakthrough cases of COVID-19 in fully vaccinated ...

“The effectiveness of the COVID vaccines can vary depending on which variants are targeted in the vaccine, which variants are circulating, and host factors,” said Shirin A. Mazumder, MD, and ...

Monoclonal antibodies like etesevimab have lost efficacy against Omicron subvariants, necessitating innovative solutions.

SARS-CoV-2, the virus responsible for COVID-19, infects cells by binding its spike protein to angiotensin-converting enzyme 2 (ACE2) receptors.

For some, the symptoms never went away. The omicron relative now dominant in the U.S. is called XEC, which accounted for 45% of variants circulating nationally in the two-week period ending Dec ...

The following is a summary of “Annual variant-targeted vaccination to prevent severe COVID-19 disease in cohorts with vaccine-derived and hybrid immunity,” published in the March 2025 issue of ...

Quantum mechanical modeling allowed the team to develop an initial set of predictions about the role of mutations on infectivity and immune response evasion of Omicron and other SARS-CoV-2 variants ...

When Neil and Michelle went looking for their first house together, they fell for one with a big kitchen addition. The home inspector found no major issues and, reassured, they bought the house. That ...

The UK has become the first country in the world to authorise an updated COVID-19 booster vaccine directed at the Omicron variant, giving a green light to Moderna's mRNA-1273.214 shot.

Please report side effects. See the full CMI for further details. 1. Why am I being given COMIRNATY Omicron XBB.1.5? COMIRNATY Omicron XBB.1.5 is a vaccine given to prevent coronavirus disease ...