[Clinical cases of food poisoning caused by NAG-vibrios]

On the basis of bacteriological and serological studies carried out during two outbreaks of food poisoning it was found that the disease was caused by NAG-vibrios of the I Heiberg group, serotypes 5 and 34 after Sakazaki. The disease was accompanied by isolation of NAG-vibrios from feces and the washings from the stomach, it was characterized by symptoms of acute gastroenteritis and enteritis of mild and moderate severity. The incubation period lasted from 3 to 30 hours. There was an increase in the agglutinin titres to homologous strains of NAG-vibrios. Of the 6 strains tested 4 proved to be enteropathogenic in intraintestinal infection of rabbits in doses of 10(5) microbial cells.