Doctronic reports you are contagious with the flu one day before symptoms and up to seven days after. Practice hygiene and isolate to protect others.

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...

A sick man at home wrapped in blanket sitting on a sofa and blowing his nose. When the flu strikes, one of the biggest concerns is how long you might be contagious. Knowing this can help protect your ...