Flowchart
Bacterial pathogens of GIT - Gram-negative bacilli
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Gram neg bacilli
Facultative Anaerobe
Microaerophile
Aeromonas spp.
Enterobacteriaceae spp.
Vibrio spp.
Campylobacter spp.
Curved
Facultative Anaerobe
Oxidase +ve
Catalase +ve
Urease -ve
Hippurate hydrolysis
C. coli
C. jejuni only
C. jejuni on Skirrow
C. coli on Skirrow
C. coli on CCDA
Oxidase +ve
Catalase +ve
Urease +ve
Sucrose fermenting
V. cholera
V. parahaemolyticus
Would be yellow on TCBS
No
Yes
V. parahaemolyticus on TCBS
V. parahaemolyticus on CHOC
V. parahaemolyticus on MH
Hippurate Hydrolysis test.
Purple = +ve
Salmonella spp
Yersinia spp.
Salmonella typhimurium on MH
Salmonella typhimurium on XLD
Yersinnia enterocolitica on MH
Yersinia enterocolitica on CIN
Aeromonas hydrophila on MAC3
Aeromonas hydrophila on CIN
ANTIGEN DETECTION
Urease +ve
Urease +ve
Oxidase
Positive
Negative
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- Flowchart on Bacterial pathogens of GIT - Gram-negative bacilli, created by Carolyn Jeffress on 10/05/2018.
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- Carolyn Jeffress
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