Add Yahoo as a preferred source to see more of our stories on Google. A digitally colorized image depicts Group A Streptococcus (GAS), Streptococcus pyogenes bacteria on the surface of a human white ...

UPMC Children’s Community Pediatrics is seeing the flu and upper respiratory viruses. Pediatricians at Penn State Health ...

"My sore throats, you know, are always worse than anybody's." So declares Mary to Anne in "Persuasion," Jane Austen's 1817 book. Most of us can relate to this feeling. There is no such thing as "just ...

Colin Michie does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

The itching, redness and swelling of an allergic reaction are caused by mast cells—the vigilant first responders of the immune system that spring into action with histamine-filled granules in response ...

The glycosylation mechanisms in Streptococcus bacterial adhesins constitute a complex post-translational modification system that is vital for bacterial adhesion, biofilm formation, and pathogenicity.

Increased levels of Streptococcus anginosus, a common type of bacteria that usually lives in the mouth and gut, was found in the gut of recent stroke survivors in Japan. A common bacteria usually ...

Don't just assume symptoms like nausea and vomiting are a stomach bug. It could also be this nightmare illness.