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  • Title: Epidemiological studies on salmonella in a certain area ("Walcheren project") III. The presence of salmonella in man, insects, seagulls and in foods, chopping-block scrapings from butcher's shops, effluent of sewage treatment plants and drains of butcher's shops.
    Author: Edel W, van Schothorst M, van Leusden FM, Kampelmacher EH.
    Journal: Zentralbl Bakteriol Orig A; 1978 Dec; 242(4):468-80. PubMed ID: 571189.
    Abstract:
    For a period of three months in a relatively small area (Walcheren), various materials (meat and meat products, insects, seagull droppings, chopping-block scrapings from butcher's shops, effluent of sewage treatment plants, drains from butcher's shops and stools of patients) were examined again for the presence of Salmonella as a continuation of previous investigations. As had been the case in previous studies, S. typhimurium (27.5%), S. panama (22.2%) and S. brandenburg (9.2%) were the three most frequently isolated serotypes. The three most frequently isolated phage types of S. typhimurium were II 505 (62.1%) II 502 (5.3%) and I 650 (4.2%). The serotypes and phage types were present in almost all the materials examined which again emphasizes the fact that there are contamination cycles of Salmonella. These studies show that the route of contamination divides in the butcher's shops. Salmonella organisms carried with the meat from the slaughter-house find their way into the drains on the one hand, and through meat and meat products, to the consumer on the other. Moreover, the high degree of contamination of effluent is not in accordance with the small number of cases of salmonellosis in man.
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