streptococcus beta-hemolytic


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streptococcus beta-hemolytic, Group A

a strain of streptococcus, group A in the Lancefield classification, that causes necrotizing fasciitis toxic shock syndrome.

streptococcus beta-hemolytic, Group B

a strain of streptococcus that causes human infections such as neonatal sepsis, endocarditis, and septic arthritis.