March 27, 2015; 12:04 PM ET
Another surge of cold air is set to blast Chicago, bringing January-like temperatures to the area early this weekend. more >
Public health officials say the United States is experiencing a resurgence of measles because some parents are opting out of the recommended vaccines for their kids.
This year's flu season is severe. So far, at least 26 children in the United States have died of influenza, and thousands of elderly people have been hospitalized, according to the Centers for Disease Control and Prevention (CDC).