Strep throat is a highly contagious infection caused by group A Streptococcus bacteria (Streptococcus pyogenes); it is common in children but affects adults too. Strep throat symptoms include a sore ...

"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 ...

Strep infections are most well known for causing strep throat, which can be treated with antibiotics. But this type of bacteria can also cause more serious illnesses—even flesh-eating infections. Here ...