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Gastroenteritis in sentinel general practices, the Netherlands.

Wit, M.A.S. de, Koopmans, M.P.G., Kortbeek, L.M., Leeuwen, N.J. van, Bartelds, A.I.M., Duynhoven, Y.T.H.P. van. Gastroenteritis in sentinel general practices, the Netherlands. Emerging Infectious Diseases: 2001, 7(1), 82-91
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From 1996 to 1999, the incidence of gastroenteritis in general practices and the role of a broad range of pathogens in the Netherlands were studied. All patients with gastroenteritis who had visited a general practitioner were reported. All patients who had visited a general practitioner for gastroenteritis (cases) and an equal number of patients visiting for nongastrointestinal symptoms (controls) were invited to participate in a case-control study. The incidence of gastroenteritis was 79.7 per 10,000 person years. Campylobacter was detected most frequently (10% of cases), followed by Giardia lamblia (5%), rotavirus (5%), Norwalk-like viruses (5%) and Salmonella (4%). Our study found that in the Netherlands (population 15.6 million), an estimated 128,000 persons each year consult their general practitioner for gastroenteritis, slightly less than in a comparable study in 1992 to 1993. A pathogen could be detected in almost 40% of patients (bacteria 16%, viruses 15%, parasites 8%). (aut.ref.)