That's because the variant — NB.1.8.1. or “Nimbus” — may cause painful sore throats. The symptom has been identified by ...

Covid-19 has many variants, each presenting with different symptoms. Variant NB. 1.8.1 is being called razor blade throat due ...

WASHINGTON (AP) — The U.S. has approved the world’s only twice-a-year shot to prevent HIV, maker Gilead Sciences announced Wednesday. It’s the first step in an anticipated global rollout that could ...