After three weeks of declining cases, influenza levels rose this week and remain elevated across the United States, and respiratory syncytial virus (RSV) and COVID-19 activity is high in certain parts ...

COVID-19 is on the rise across the United States, just ahead of the holidays and one of the busiest travel times of the year. The uptick in COVID comes as influenza surges, sickening thousands of ...

CHICAGO (WLS) -- As the number of reported cases of COVID-19 continues to rise in Chicago, Mayor Lori Lightfoot warned that any further reopening plans are in jeopardy if that trend does not change.

Much of the message's information was misleading about a real variant of the virus that causes COVID-19.

White House Chief Medical Advisor Dr. Anthony Fauci warned that COVID-19 cases in the United States may plateau again at a very high level, even as the nation rapidly administers three vaccines.

With Christmas just a week away, doctors are warning about the so-called "tripledemic" surging across New York. According to Northwell Health on Long Island, across the state, cases of RSV are up 35%, ...

Flu activity has ticked back up slightly in the US, thanks to a very small increase in infections caused by influenza B — viruses distinct from the new subclade K strain that’s been the biggest player ...