Zeitschrift für Gastroenterologie
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In 352 patients who were hospitalized with symptoms of an acute appendicitis, Yersinia infection were determined in 18.2% of the cases by cultural and serological methods. Infections due to Y. enterocolitica (Y. e.) serovar 0:3 were approximately 6 times more frequent than those due to Y. e. serovar 0:9. ⋯ The majority of the infections were found in the age group 9-12 years. The incidence was highest in the summer months June-August.