A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.

CHICOPEE, Mass. (WWLP) – Doctors are warning of two new COVID-19 strains this summer that are currently going around.

State and local health departments responsible for invisible but critical work such as inspecting restaurants, monitoring ...