Influenza activity is currently high in California, with a significant number of flu-related hospitalizations and deaths reported this season. Fever is the body's natural response to fight off ...

The primary culprit behind fever blisters is the herpes simplex virus, specifically HSV-1. This highly contagious virus is easily transmitted through close personal contact, such as kissing or sharing ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you’re wondering: Can allergies cause a fever? You’re not alone—there are lots of myths about ...

Add Yahoo as a preferred source to see more of our stories on Google. Body aches can still be a sign of the flu even if you don't have a fever. Milos Dimic/Getty Images The most common cause of body ...

Hay fever is a debilitating condition that affects one in four adults in the UK, impacting on daily health and sleep ...

Rheumatic fever (RF) is a fairly rare inflammatory condition in developed countries that can develop as a complication of untreated strep throat caused by group A streptococcal infections. It ...

We've all experienced illness in the form of the flu or a cold. While sometimes these illnesses may be mild, other times they are accompanied by a fever. While most of the time our fever will decrease ...