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Home Topics Infectious Diseases Infections A-Z Serratia species

Serratia species

Colonies of Serratia marcescens on agar culture plate

Serratia species are rod-shaped bacteria that are present in the environment and are infrequently found in the human intestine.  

Photo:CDC

Serratia marcescens primarily causes infections in insects.  In man it is an occasional cause of urinary tract, wound and bloodstream infections. 

Serratia infections tend to be associated with critical care units.