If you’ve had a sore throat from time to time or blisters around your mouth or nose, chances are you’ve had a group A streptococcal (GAS) infection. Group A streptococcus is the bacteria that causes ...

Cases of invasive group A strep infections, which can cause severe illness and be deadly, remain elevated in some parts of the country, officials warned Wednesday. In a statement to ABC News, the ...

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. The ...

Cedric W. Spak, MD, MPH, says non-group A streptococcal pharyngitis should always be treated “to be on the safe side” (Item 114-25). But group A strep is treated primarily to avoid rheumatic fever, ...