29. Expanding on the Enterobacterales

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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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