A key step in the origin of many pandemics occurs when an animal-borne virus infects humans and then evolves to spread more efficiently from person to person. That is why scientists and physicians ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Health officials are closely monitoring the spread of a newly ...

(WXYZ) — In today’s Health Alert, a new COVID variant is showing up in more than two dozen states, including right here in Michigan. Early data suggest it may ...

New research shows that after the body's defenses kill the virus behind COVID-19, leftover digested chunks of SARS-CoV-2 spike protein can target specific immune cells based on their shape. The ...

Children and adolescents demonstrated an increased risk for long COVID following SARS-CoV-2 reinfection during the Omicron period, highlighting the need for continued vaccination in younger ...

AI-generated summary reviewed by our newsroom. Read our AI Policy. A new COVID-19 variant has quickly emerged as dominant in a matter of months, according to data from the Centers for Disease Control ...

COVID-19 is once again climbing to troubling levels in California — a worrying trend as health officials attempt to navigate a vaccine landscape thrown into uncertainty by delays and decisions from ...

The Nimbus variant, or NB.1.8.1, is a strain of SARS-CoV-2, which causes COVID-19. Alongside the usual symptoms of COVID-19, it can cause a razor blade sensation in the throat and gastrointestinal ...

June 26, 2025 – The new COVID-19 variant that now makes up about a third of U.S. COVID cases has a signature symptom: a painful sore throat that feels like "razor blades." "This 'razor blade sore ...

Share on Pinterest As the Nimbus variant increases in the U.S., many are reporting an unusually intense sore throat, described as feeling like swallowing razor blades. Ozgur Cankaya/Getty Images The ...