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The Relative Importance of Rotavirus and Other Pathogens in the Etiology of Gastroenteritis in Trinidadian Children^*

Over a 2-year period, 300 infants less than 3 years old with gastroenteritis admitted to hospitals in Trinidad were investigated for the presence of certain microorganisms in the feces, along with an equal number of age- and sex-matched controls. Rotavirus was detected in 23% of cases and 1% of controls; Salmonella in 7% of cases and 1% of controls; Shigella in 4% of cases and in no controls and two serotypes of enteropathogenic E. coli in 7% of cases and in 2% of controls. Campylobacter fetus subspecies jejuni was cultured from 7 out of 60 cases and from 1 of 60 controls. Enterotoxigenic E. coli, most strains of enteropathogenic E. coli, cytopathic enteroviruses and adenoviruses and fecal parasites were not significantly associated with diarrhea. Rotaviruses were detected throughout the year but were more prevalent in the dry than in the rainy season. They were found less often in children younger than 6 months than in those aged 6 to 35 months and were present in 6 of the 20 children who died.

Accepted for publication June 12, 1980.

^* The study from which these data were extracted was funded by the International Development Research Centre of Canada through grant no. 3P-76-0139 made to the Pan American Health Organization. It was conducted at the Caribbean Epidemiology Centre (PAHO/WHO), Trinidad, and was sponsored by the Government of Trinidad and Tobago.

The study forms part of a Ph.D. Thesis submitted to the University of the West Indies by B. Hull.

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