Aeromonas-associated diarrhoea in Bangladeshi children: clinical and epidemiological characteristics

We studied the clinical and epidemiological features associated with Aeromo nas diarrhoea by a hospital survey of 7,398 children under 5 years of age p resenting with diarrhoea. The data were actually based upon two cohorts fro m this survey, the majority of the data being identified from 405 (5.5%) in whom Aeromonas was the sole enteric pathogen. Aeromonas caviae was the mos t prevalent species, accounting for 32% (129/405) of all isolates. Eighty-t hree per cent of children with Aeromonas-associated diarrhoea were younger than 3 years. The majority of the children had acute onset of vomiting and watery diarrhoea resulting in mild to moderate dehydration. Fever, non-wate ry diarrhoea, age less than 3 years, and diarrhoea of 7-14 days duration we re found to be significantly associated with Aeromonas diarrhoea compared w ith Vibrio cholerae O1 infection after adjusting for confounders. Aeromonas -associated diarrhoea was most common from March to May (during the peak of the hot and humid season), and September to October, similar to Vibrio cho lerae O1. Our results indicate that Aeromonas infection is common in young children presenting with diarrhoea in Bangladesh.