A California Department of Public Health dashboard showed high test positivity for influenza throughout the state and a “very high” level in the San Joaquin Valley.

Breaking news headlines, stories and live updates on current affairs from across the globe. Complete coverage on the latest ...

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 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 ...

The United States is seeking a massive surge in flu cases this winter, many of them attributed to the so-called "super flu." Why it matters: An unprecedented rise in flu cases comes as other ...

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 influenza strain this flu season is raising concerns as Americans hit the roads and take to the skies ahead of the Thanksgiving holiday, with fewer people choosing to get vaccinated. What is the ...

San Diego County recorded 735 new flu cases since last week, bringing the season total to over 9,400 cases.

Flu season isn't in full swing yet in the United States, but a mutated strain of the virus that has caused severe outbreaks abroad is sparking concern about the winter ahead. A new version of ...