Travellers' diarrhoea.

Travellers' diarrhoea may affect up to 50 per cent of travellers to developing countries. It is now known to be caused by a large number of different organisms with enterotoxigenic Escherichia coli as the major pathogen. By eating and drinking prudently, travellers can hope to reduce the chances of being affected. They should also be equipped with a strategy of rehydration and specific treatment so that the impact of the illness can be kept to a minimum.