Most Strep A infections are mild, but in rare cases the bacteria can cause serious illness The death of five-year-old Jax ...

A jump in the number of people with serious illness caused by group A Streptococcus—also referred to as Streptococcus pyogenes or Strep A—has made headlines recently. There has also been a higher than ...

This handout image provided by the National Institute of Allergy and Infectious Diseases shows an electron microscope image of Group A Streptococcus (orange) during phagocytic interaction with a human ...