COVID-19 variant is quietly making its rounds across the United States, prompting health officials to reiterate the ...

A new Covid-19 variant called NB.1.8.1, or Nimbus, represents about a third of new US Covid-19 cases. Dr. Leana Wen answers ...

NB.1.8.1 is one of the latest variants of COVID-19, a "slightly upgraded version" of the LP.8.1 variant that is prominent ...

Multiple news reports have linked the subvariant, NB 1.8.1, to "razor blade throat," in part because of postings on social ...

A document the Department of Health and Human Services distributed to members of Congress to justify recent changes to ...

Patients and doctors say the latest COVID-19 variant spreading in the U.S. in some cases causes a sore throat so painful it ...

COVID-19 patients who are vaccinated -- and were hospitalized with reduced kidney function -- had better outcomes than ...

Most people have put the COVID-19 pandemic behind them. Infections, vaccinations, or a combination of both have bolstered ...

Colorado has enhanced pandemic readiness with new public health technologies and staff following lessons from COVID-19.

Now that Covid vaccines are no longer recommended for healthy children and pregnant people, boosters could be a lot more ...