Przegla̧d epidemiologiczny
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The study was based on data from: the "Infectious diseases and poisonings in Poland" bulletins published annually between 2005-2010 (MP Czarkowski i in., PZH i GIS), individual case interviews conducted by sanitary stations and data from Demographic Surveys Departament based in the Central Statistical Office. Analysis of the incidence of yersiniosis in the country during 2010 was based on data on clinical symptoms associated with the disease, age groups, the number of cases in different provinces and the serotypes of Yersinia which were isolated. ⋯ A very large percentage (65.6%) of isolated strains of Yersinia were not serotyped. Yersinia serotype 08 remains very common serotype reported, despite a decline in 2010 in the number of cases notified. The high percentage of hospitalization points that patients with gastrointestinal symptoms are relatively rare direct to routine laboratory diagnostic of Yersinia infection.