A variant strain of the coronavirus, one that was first discovered in the United Kingdom, is now the dominant strain of the virus circulating throughout the United States, CDC Director Rochelle ...

Johnson & Johnson said Thursday that new data shows that its single-shot COVID-19 vaccine provides protection against the virus for at least eight months and effectively prevents infection from ...

A new strain of Covid, with an apparently telltale symptom, has reached the UK, and already accounts for a high proportion of new recorded cases in England. The arrival of the Stratus strain comes as ...

Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...

Add Yahoo as a preferred source to see more of our stories on Google. (NewsNation) — As the weather begins to change and respiratory illnesses become more common, a highly transmissible strain of ...

A new covid-19 variant that first was detected last year quickly has become the dominant strain in the U.S. Nicknamed the “kraken variant” by some, it surged through the nation and now has been ...

A new mutated strain of the common flu, influenza H3N2, subclade K, is spreading across the Northern Hemisphere, including the United States. This particular strain has gained dominance in many ...

One reason for a spike just after the holidays is believed to be due to a strain of the flu that's being called "super flu." It's variant Influenza A, which is one of the common variants we see going ...

The Stratus strain, also known as the ‘Frankenstein’ variant, belongs to the SARS-CoV-2 XFG and XFG.3 lineages and has been spreading swiftly across the United Kingdom, with evidence suggesting it is ...