Difference between revisions of "Vibrio species"
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*Enteric diseases in humans | *Enteric diseases in humans | ||
| + | *''Vibrio alginolyticus'' and ''Vibrio penaicida'' cause disease in farm raised shrimp growout ponds | ||
| + | *''Vibrio harveyi'' can cause mortality in shrimp fry (luminescent vibriosis) | ||
| + | *''Vibrio parahemolyticus'' and ''Vibrio vulnificus'' cause foodborne illness associated with undercooked seafood in humans | ||
*''Vibrio metschnikovii'' causes enteric disease in chickens | *''Vibrio metschnikovii'' causes enteric disease in chickens | ||
*''Listonella anguillarum'' skin lesions and septicaemia in fish and eels | *''Listonella anguillarum'' skin lesions and septicaemia in fish and eels | ||
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===Diagnosis=== | ===Diagnosis=== | ||
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*Isolation and identification from lesions | *Isolation and identification from lesions | ||
*Widespread in environments | *Widespread in environments | ||
| − | + | *Growth on 2% NaCl TSA | |
| + | *TCBS (Thiosulfate-citrate-bile salts-sucrose agar) is the selective media of choice | ||
| + | *Green colonies on TCBS are usually ''Vibrio harveyi'' or ''parahemolyticus'' | ||
| + | *Yellow colonies ''can be'' ''Vibrio cholerae'' | ||
===Treatment=== | ===Treatment=== | ||
Latest revision as of 13:12, 2 October 2012
Overview
- Gram negative bacteria
- Found in aquatic environments
- Opportunistic pathogens of fish, reptiles and rarely mammals
- Vibrio cholerae causes cholera in humans, a severe enteric disease
Characteristics
- Curved rods
- Catalase and oxidase positive
- Facultative anaerobes
- Motile
- Grow on non-enriched media; NaCl supplementation required for Vibrio species
- Found in salt water
- Enteric diseases in humans
- Vibrio alginolyticus and Vibrio penaicida cause disease in farm raised shrimp growout ponds
- Vibrio harveyi can cause mortality in shrimp fry (luminescent vibriosis)
- Vibrio parahemolyticus and Vibrio vulnificus cause foodborne illness associated with undercooked seafood in humans
- Vibrio metschnikovii causes enteric disease in chickens
- Listonella anguillarum skin lesions and septicaemia in fish and eels
Diagnosis
- Isolation and identification from lesions
- Widespread in environments
- Growth on 2% NaCl TSA
- TCBS (Thiosulfate-citrate-bile salts-sucrose agar) is the selective media of choice
- Green colonies on TCBS are usually Vibrio harveyi or parahemolyticus
- Yellow colonies can be Vibrio cholerae
Treatment
- Antibiotics including Gentamicin against Vibrio species