It’s hard to tell the difference between the stomach flu and food poisoning—but medical experts say there are a few clues ...

The United States is seeing a second peak in flu cases this season. After doctor’s office visits for flu dipped early this ...

RSV, respiratory syncytial virus, usually peaks in December and January while infecting the nose, throat and lungs, usually ...

During the COVID pandemic, RSV showed a slightly odd pattern: like flu, it basically disappeared in the 2020–2021 season, ...