Which are the most common organisms causing bacterial sepsis?

Updated: Feb 05, 2019
  • Author: Amber Mahmood Bokhari, MBBS; Chief Editor: Michael Stuart Bronze, MD  more...
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The predominant infectious organisms that cause sepsis have changed over the years. Gram-positive bacteria are the most common etiologic pathogens, although the incidence of gram-negative sepsis remains substantial. The incidence of fungal sepsis has been rising with more patients on immunosuppressive therapies and more cases of HIV infection. In approximately half of sepsis cases, the organism is not identified (culture-negative sepsis).

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