Serratia species


  • Aerobic, Gram-negative rod of Enterobacteriaceae family, Klebsiella tribe.
  • Only S. marcescens is a routine cause of human disease; others (S. liquefaciens, S. rubidaea, S. odorifera) are rare.
    • Produces red hues upon growth on some nutrient agars and substances [Fig].

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Last updated: March 19, 2023