Mortality difference from Klebsiella aerogenes vs Enterobacter cloacae bloodstream infections

Access Microbiol. 2023 Feb 27;5(2):acmi000421. doi: 10.1099/acmi.0.000421. eCollection 2023.


Members of the order Enterobacterales, including Escherichia coli , Klebsiella species and Enterobacter species, are important pathogens in healthcare-associated infections. Higher mortality has been reported from infections due to Klebsiella pneumoniae than from E. coli , but prior studies comparing Enterobacter aerogenes (recently renamed Klebsiella aerogenes ) bacteraemia and Enterobacter cloacae complex bacteraemia have yielded conflicting results regarding whether clinical outcomes differ. We found bacteraemia with K. aerogenes was independently associated with greater risk of 30-day mortality than bacteraemia with Enterobacter cloacae complex.

Keywords: bacteraemia; clinical; enterobacterales; genus; outcome.