NAME: Vibrio parahaemolyticus
SYNONYM OR CROSS REFERENCE: N/A
CHARACTERISTICS: Gram negative rod, halophilic, facultative anaerobe, 0.5-0.8 µm x 1.4-2.4 µm. Pathogenic strains usually possess characteristic hemolytic reaction (Kanagawa phenomenon)
PATHOGENICITY: Gastroenteritis characterized by watery diarrhea and abdominal cramps; sometimes nausea, vomiting, fever and headache; occasionally a dysentery-like illness with bloody or mucoid stools, high fever, and high WBC; open wounds may become infected; systemic infection and death rarely occur
EPIDEMIOLOGY: Sporadic cases and common source outbreaks, particularly in Japan, Southeast Asia, and North America; occurs primarily in warm months of the year
HOST RANGE: Humans
INFECTIOUS DOSE: Ingestion -> 106 organisms
MODE OF TRANSMISSION: By ingestion of raw or inadequately cooked seafood, or any food cross-contaminated by handling raw seafood in the same environment, or by rinsing with contaminated seawater; a period of time at room temperature is generally necessary to allow multiplication of organisms to infectious level; exposure of open wound to contaminated sea water
INCUBATION PERIOD: Usually between 12-24 hours, but can range from 4-96 hours
COMMUNICABILITY: Not communicable from person-to-person
RESERVOIR: Marine coastal environs are the natural habitat; during the cold season, organisms are found in marine silt; during the warm season, they are found free in coastal waters and in fish and shellfish
ZOONOSIS: None
VECTORS: None
DRUG SUSCEPTIBILITY: Sensitive to penicillin, ampicillin, fluoroquinolones; strains resistant to multiple antibiotics have been isolated
SUSCEPTIBILITY TO DISINFECTANTS: Susceptible to many disinfectants - 1% sodium hypochlorite, 70% ethanol, 2% glutaraldehyde, formaldehyde
PHYSICAL INACTIVATION: Sensitive to cold
SURVIVAL OUTSIDE HOST: Shrimp - up to 120 days; swabs - 72 days
SURVEILLANCE: Monitor for symptoms; confirmation by stool culture or culture of suspected contaminated food (> 105 organisms)
FIRST AID/TREATMENT: Fluid replacement as necessary
IMMUNIZATION: None
PROPHYLAXIS: None
LABORATORY-ACQUIRED INFECTIONS: At least 1 reported case of laboratory acquired infection
SOURCES/SPECIMENS: Feces, infected seafood and seawater
PRIMARY HAZARDS: Ingestion, parenteral inoculation; importance of aerosol hazards not known
SPECIAL HAZARDS: Naturally and experimentally infected animals are a potential source of infection
CONTAINMENT REQUIREMENTS: Biosafety level 2 practices and containment for activities with cultures or potentially infectious clinical materials; animal biosafety level 2 practices and facilities for activities with infected animals
PROTECTIVE CLOTHING: Laboratory coat; gloves when direct contact with infectious materials is unavoidable
OTHER PRECAUTIONS: Good personal hygiene and frequent handwashing
SPILLS: Allow aerosols to settle; wearing protective clothing, gently cover spill with paper towels and apply 1% sodium hypochlorite, starting at perimeter and working towards the centre; allow sufficient contact time (30 min) before clean up
DISPOSAL: Decontaminate before disposal; steam sterilization, chemical disinfection
STORAGE: In sealed containers that are appropriately labelled
Date prepared: February, 2001
Prepared by: Office of Laboratory Security, PHAC
Although the information, opinions and recommendations contained in this Material Safety Data Sheet are compiled from sources believed to be reliable, we accept no responsibility for the accuracy, sufficiency, or reliability or for any loss or injury resulting from the use of the information. Newly discovered hazards are frequent and this information may not be completely up to date.
Copyright ©
Health Canada, 2001
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