Which aerobic and anaerobic pathogens may be present in necrotizing fasciitis?

Updated: Sep 02, 2020
  • Author: Steven A Schulz, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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In necrotizing fasciitis, group A hemolytic streptococci and Staphylococcus aureus, alone or in synergism, are frequently the initiating infecting bacteria. However, other aerobic and anaerobic pathogens may be present, including the following:

  • Bacteroides

  • Clostridium

  • Peptostreptococcus

  • Enterobacteriaceae

  • Coliforms (eg, Escherichia coli)

  • Proteus

  • Pseudomonas

  • Klebsiella

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