Flu season in the US is the most intense it's been in at least 15 years
So far this season, the CDC estimates there have been at least 24 million flu illnesses, 310,000 hospitalizations and 13,000 ...
Flu is so bad right now that schools across the country are closing
Schools around the U.S. are closing due to surges of flu and other illnesses, which are sickening students and staff. Here's what parents need to know.