Occurrence of enterotoxigenic Aeromonas species in foods.

Out of a total of 246 food samples of animal origin screened for isolation of Aeromonas spp., 33 (13.41%) were positive for these organisms. Maximum positivity was shown by the samples from fish (28.57%), followed by poultry meat (16.67%), poultry eggs (12.50%), goat meat (12%), buffalo meat (7.69%) and cow milk (5.56%). A. hydrophila was the predominant species (51.52%) followed by A. sobria (39.39%) and A. caviae. Of these, 70.59% A. hydrophila, 69.23% A. sobria and 33.33% A. caviae showed enterotoxigenic reaction in mouse paw oedema test.