'American Covid' mask update as guidance issued after cases rise

The UK Health Security Agency (UKHSA) and NHS have warned of rising COVID-19 and flu cases across Britain, with hospital ...

People are comparing a possible plague case in Russia to COVID. Here’s what experts want you to know.

One person has died, 200 are under observation and a hospital is under quarantine. Here’s what matters most to experts.
NBC News

Why the CDC edited a key Covid metric, and what it says about the state of the virus

The Centers for Disease Control and Prevention last month raised its benchmark for levels of the Covid virus in wastewater, adjusting a key metric for assessing the disease’s transmission. As a result ...

As COVID Rises in Over Half of US, Who Should Get a Vaccine This Fall? Experts Explain

The new 2026-2027 COVID-19 vaccines are available. Experts explain who should get one the shots and why, the best time to get vaccinated, side effects and more.