Bronchitis is inflammation of the tubes that ... At the start of a bacterial or viral infection, you might get chills. To generate heat, your muscles rapidly contract (squeeze) and relax when ...

Bronchitis—specifically acute bronchitis ... but sometimes symptoms, like fever, chills, and headache, can occur. Pneumonia can range from mild to severe, depending on what caused the infection ...

Recent winter chills and freezing temperatures caught many by surprise and also risked the health of many. The flu is ...