SALMONELLA-TYPHIMURIUM DT104 INFECTION IN PEOPLE AND ANIMALS IN SCOTLAND - A COLLABORATIVE EPIDEMIOLOGIC-STUDY 1993-96

This paper describes a comparative analysis of human and farm animal s almonellosis in Scotland between 1993 and 1996, with particular refere nce to Salmonella typhimurium definitive type 104 (DT104), Cattle were the main reservoir, accounting for 73.1 per cent of incidents involvi ng all salmonellae and 69.5 per cent of those involving S typhimurium DT104 The annual rates of incidence in people and cattle were recorded in each Health Board area. Dumfries and Galloway had the highest rate of incidence in cattle for all salmonellae (19.0 per 100,000) but peo ple were affected uniformly across mainland Scotland, However, the rat e of incidence of S typhimurium DT104 was highest in Dumfries and Gall oway for both people (10.1 per 100,000) and cattle (13.0 per 100,000), In Dumfries and Galloway, Wigtownshire had the highest fates for all salmonellae and for S typhimurium DT104 in both people and cattle. In Dumfries and Galloway, 37.8 per cent of the adult cases of S typhimuri um DT104 in people were among those known to have had regular contact with animals, and children under six years of age accounted for 36.3 p er cent of the human infections in this region.