Impetigo is a common contagious skin infection. Bacteria like Staphylococcus aureus or Streptococcus pyogenes infect the outer layer of your skin called the epidermis. Your face, arms, and legs ...

Staphylococcus epidermidisis gamma-hemolytic ... This stab allows for the detection of streptolysin O, a specific hemolysin produced by Streptococcus pyogenes. This hemolysin is inactivated by O 2 and ...