Streptococcal infections are any kind of infection caused by the streptococcal, or “strep,” type of bacteria. Also called streptococci, these bacteria are divided into group A, group B, group C, and ...

Researchers have discovered how antibodies help to protect against contagious bacterial infections caused by Strep A, including strep throat. And the findings are already contributing to efforts to ...

Strep throat is a sore throat caused by bacteria known as Streptococcus pyogenes, or group A streptococcus. Symptoms can include pain, swelling, small spots in the mouth, and more. “Sore throat” is ...