Seasonal influenza activity remained elevated and rose in the final week of December, U.S. Centers for Disease Control and ...

New CDC data show flu cases are rising across the country, including in Texas, and health experts caution the surge hasn't ...

U.S. health officials say it's a severe flu season that's likely to get worse. Government data posted Monday shows that by ...

Flu continues to visit misery across the US, with all but four states showing high or very high levels of activity as a new virus strain called subclade ...