Badania nad etiopatogeneza jersiniozy zakazonych doswiadczalnie swin

The aim of the studies was to evaluate the carrier state of Yersinia enterocolitica and its effect on the immune response in experimentally infected pigs. The experiment was performed on 15 piglets aged eight weeks divided into three groups: I - piglets infected intravenously, II-animals infected intragastrically, III - a control group (non-infec- ted). In experimentally infected piglets the bacterial colonization caused by Y. enterocolitica was found in the intestines and tonsils and the carrier state lasted for 8 to 12 weeks. The infection brought about an increase in the level of specific antibodies (0:3). There was no correlation between the concentration of specific antibodies and the detectability of Y. enterocolitica in faeces of the piglets.