The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

Nasal sprays can provide relief from flu symptoms by reducing nasal congestion and inflammation, making it easier to breathe.

CNN’s Dr. Sanjay Gupta discusses the severity of the flu season in the US and how people can protect themselves.

The flu season has reached high levels, with 3,600 children testing positive in the past week across the Norton Children's System.

One in every three flu tests came back positive last week, according to the Centers for Disease Control and Prevention.

The Springfield Greene County Flu Dashboard shows a surge in the flu in the last month. Based on doctor’s office visits -- it ...

Last year there were 204 flu cases from Jan. 26 to Feb. 1. This year it's 907. Boone County already more than half way to last year's season total.

The U.S. influenza rate is at or near its highest level in at least 15 years and is still on the rise, the U.S. Centers for ...

Flu activity is at its highest level since 2009, forcing school closures and overwhelming hospitals across the U.S.

French pharmaceutical and healthcare company Sanofi on Friday announced a share buyback plan worth up to €2 billion ($2.08 ...

While the virus hasn’t made a sustained leap into humans, vaccines and treatments are being developed ahead of an outbreak.

French pharmaceutical company Sanofi said on Monday that it plans to buy back shares from cosmetics firm L'Oréal. Sanofi said ...