29. Expanding on the Enterobacterales

Join Jame and Callum and they discuss some of the other Enterobacterales Gram negatives. Particularly breaking down them into their families and into Lactose fermenters and non-fermenters. Jame has a small breakdown around our Twitter handle near the end.

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Some lists:
Chromosomal AmpC Carriers (high-risk): HECK YES

·         Hafnia alvei, Enterobacter cloacae, Citrobacter freundii, Klebsiella aerogenes, Yersinia enterocolitica

Lower Risk Chromosomal AMPC: Vulgar Providencia Store AMPC

·         Proteus Vulgaris, Providencia, Serratia, Acinetobacter, Morganella, Providencia

 Intrinsic Colistin Resistance: 

·         Burkholderia cepacia (Nonfermenter), Proteus, Providencia, Serratia

 Biochemical mimics of Salmonella (also can group)

·         Hafnia, Morganella,Proteus

 Cat 3 organisms: 

·         Salmonella typhi/paratyphi, Shigella dysenteriae type 1, E.coli O157, Yersinia Pestis

Some useful resources:

SMI ID 16: identification of Enterobacteriaceae

https://www.gov.uk/government/publications/smi-id-16-identification-of-enterobacteriaceae

 Janda JM, Abbott SL. 2021. The changing face of the family Enterobacteriaceae (order: “Enterobacterales”): new members, taxonomic issues, geographic expansion, and new diseases and disease syndromes. Clin Microbiol Rev 34:e00174-20. 

https://doi.org/10.1128/CMR.00174-20 

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