Care for the flu is generally supportive — meaning rest, hydration, and over-the-counter medication, but as the Mayo Clinic points out, if you're in a group at high risk of complications — such as pregnant, older, or asthmatic — you may be prescribed an anti-viral medication such as Tamiflu.

Four viruses are making Americans sick this winter, and one of them is nasty.

COVID-19, influenza, RSV, and norovirus—have created what experts are calling a "quad-demic" in the U.S. Here's what to know and how to stay well.