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 ...
Strep A is a bacterium known as group A streptococcus, or Streptococcus pyogenes, that is common worldwide. Many people carry the bacteria in their mouth and throat without experiencing any symptoms, ...
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