AY.4.2 is "noted to be expanding in England", according to the UK Health Security Agency, and now makes up 6% of new cases. It's an offshoot of the Delta variant that has been dominant since earlier ...

The Delta variant, also referred to as a "double mutant" because it carries two mutations, is 55 per cent more transmissible ...

Four Delta variant COVID cases were found in Rockland County during the second week of July, according to county officials.

For a few fleeting weeks in June and July, the coronavirus was only a footnote as Delawareans enjoyed the trappings of a summer closer to normal. But, the delta variant-spurred resurgence of COVID-19 ...

The World Health Organization and the Centers for Disease Control and Prevention have both designated beta as a “variant of ...

President Biden will deliver a speech Thursday evening on his administration’s plan to combat the delta variant of the coronavirus. Biden is also expected to announce a requirement that all federal ...

CONTRA COSTA COUNTY (CBS SF) – COVID-19-related death rates in Contra Costa County are now higher than any time since March, and nearly all of the new county cases involve the delta variant of the ...

Oregon could see a spike in hospitalizations from COVID-19 omicron variant infections that is more than twice as high as the ...