What is the “delta plus” variant? It’s a relative of the delta variant, identified by British scientists last month. Because it isn’t a variant of interest or concern, it has not yet been officially ...

The delta variant is fueling the COVID-19 surge in the United States, but experts warn that a more dangerous variant could emerge if more Americans don't get vaccinated. Delta is the most recent of ...

CNN — A new and slightly changed version of the Delta coronavirus variant is spreading in a number of countries including the United Kingdom, United States and India, health officials say. This strain ...

India confirmed about 50,000 new coronavirus infections today. That is a fraction of what it was seeing at its peak last month. So it looks like the world's biggest and deadliest COVID-19 wave may now ...

Los Angeles County health officials are once again asking their residents -- even the fully vaccinated ones -- to mask up, this time against a newer and more transmissible variant of the COVID-19 ...

Several COVID-19 variants are acting uniquely enough to qualify as a distinct strain. And you might have heard about one on ...

KANSAS CITY, Mo. (AP) - As the U.S. emerges from the COVID-19 crisis, Missouri is becoming a cautionary tale for the rest of the country: It is seeing an alarming rise in cases because of a ...