Isolation of Yersinia enterocolitica from the faeces of diarrhoeic swine.

In April and May 1983, a total of 124 samples of faeces from 124 swine was examined for the presence of Yersinia enterocolitica by a variety of isolation procedures. The organisms were recovered from 48.4% of the swine, which all had diarrhoea. The strain belonged to serotypes 0:3 and 0:9 which are considered to be pathogenic for humans.