A new H3N2 subclade K flu strain is spreading rapidly. Here’s what doctors say about symptoms, contagiousness and vaccine protection.

For millions of people living with long COVID, symptoms like shortness of breath, mental fog, and deep fatigue continue long after infection, with no clear explanation. Now, a group of leading ...

ME/CFS is a neurological condition characterized by malaise. Diagnosis requires ruling out other systemic illnesses.

H. pylori bacteria can disrupt your stomach's protective lining and cause peptic ulcers. You can treat H. pylori infections with antibiotics and medications that lower acid to prevent complications. H ...

Dengue is one of the world's fastest-spreading mosquito-borne diseases, causing millions of infections annually. Half of the ...

A model that combines a host biomarker with a generative artificial intelligence (AI) analysis of electronic medical records ...

People given the herpes medication valacyclovir actually experienced worse cognitive decline than those given a placebo.

Sinus infections, also known as sinusitis, can leave us feeling miserable with symptoms like nasal congestion, facial pain ...

Joint pain and body aches are also common. How menopause causes these symptoms isn’t fully understood, but experts say they ...

If there’s one thing you don’t want to endure, it’s the symptoms of norovirus, which also goes by the unfortunately apt moniker of “winter vomiting disease:” It triggers brutal GI upset for roughly ...

This means there are fewer treatment options for even routine thrush infections – making them more difficult to treat. It also means that more severe Candida infections, which can occur in people who ...

CVID is a disorder that affects the immune system. The condition involves issues with your B cells, a type of white blood cell. Symptoms can include repeated infections and autoimmune conditions.