Abstract
In a three-month survey in The Gambia, campylobacters were isolated from 14·3% of 287 patients suffering from diarrhoea and from 4·2% of 383 patients and controls without diarrhoea. The equivalent figures for shigellas were 6·3% and 2·1%, and for salmonella 7·0% and 2·6% respectively. 53 (93%) of the 57 campylobacters were isolated from children less than five years old; none were isolated from indigenous adults (>15 years old). By using two selective media in parallel (Butzler's medium and Skirrow's medium), it was found that the number of isolations was increased by one third over that obtained with either medium alone.

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