NAME: Aeromonas hydrophila
SYNONYM OR CROSS REFERENCE: Aeromonads
CHARACTERISTICS: Gram negative small rods, polar flagella, facultatively anaerobic, exotoxins
PATHOGENICITY: Associated with gastroenteritis, wound infections (cellulitis), septicemia, ocular and respiratory tract infections, pneumonia and urinary tract infections; frequent pathogens for cold-blooded marine and freshwater amphibians and reptiles (red leg disease in frogs); also in birds
EPIDEMIOLOGY: Worldwide; especially near freshwater sources; incidence of serious human disease is increasing and many isolates are probably misdiagnosed as coliforms
HOST RANGE: Humans, amphibians, fish, reptiles, birds
INFECTIOUS DOSE: Unknown
MODE OF TRANSMISSION: Fecal-oral transmission; contact with contaminated water, food, soil, faeces; ingestion of contaminated fish or reptiles
INCUBATION PERIOD: Not clearly identified
COMMUNICABILITY: Not usually transmitted from person to person
RESERVOIR: Salt and freshwater, soil, sewage
ZOONOSIS: None
VECTORS: None
DRUG SUSCEPTIBILITY: Susceptible to expanded- and broad-spectrum cephalosporins, aminoglycosides, carbapenems, chloramphenicol, tetracycline, trimethoprim-sulfamethoxazole and the quinolones
DRUG RESISTANCE: Resistant to penicillin, ampicillin, carbenicillin and ticarcillin
SUSCEPTIBILITY TO DISINFECTANTS: Susceptible to many disinfectants - 1% sodium hypochlorite, 70% ethanol, 2% glutaraldehyde, iodines, phenolics, formaldehyde
PHYSICAL INACTIVATION: Sensitive to moist heat (121°C for at least 15 min) and dry heat (160-170°C for at least 1 hour)
SURVIVAL OUTSIDE HOST: Survives well in natural water sources and soil
SURVEILLANCE: Monitor for symptoms
FIRST AID/TREATMENT: Fluid replacement and antibiotic therapy as indicated
IMMUNIZATION: None
PROPHYLAXIS: Not usually administered
LABORATORY-ACQUIRED INFECTIONS: None reported to date
SOURCES/SPECIMENS: Faeces, urine, blood, sputum, bile
PRIMARY HAZARDS: Ingestion, accidental parenteral inoculation, direct contact of mucous membranes
SPECIAL HAZARDS: Naturally or experimentally infected cold-blooded animals
CONTAINMENT REQUIREMENTS: Biosafety level 2 practices, containment equipment and facilities for all activities involving known or potentially infectious clinical materials and cultures
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 absorbent paper and apply 1% sodium hypochlorite, starting at the perimeter and working towards the centre; allow sufficient contact time (30 min) before clean up
DISPOSAL: Decontaminate before disposal; steam sterilization, chemical disinfection, incineration
STORAGE: In sealed containers
Date prepared: November 1999
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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