B:2 típusú Pasteurella multocida törzsek okozta megbetegedés előfordulása sertésekben - Irodalmi összefoglaló és esetismertetés

Abstract

SUMMARY The authors give an overview of septicaemic pasteurellosis in pigs caused by Pasteurella multocida type B:2. This acute and frequently fatal disease primarily affects buffaloes and cattle, but other species are also known to be susceptible to the infection. This paper describes the first occurrence of septicaemic pasteurellosis in swine in Hungary. Detailed description is given about the circumstances of the disease observed in backyard pigs in August 2013, and the results of the pathological, histopathological, and immune-histochemical analysis are also presented. The most characteristic lesion was dark red discolouration of the skin of the ventral region of the neck and the thorax accompanied by oedema and haemorrhages. The P. multocida strains isolated form the diseased pigs proved to represent capsular type B, somatic serotype 2, and biovar 3. Multihost multilocus sequence typing (MLST) assigned these strains to a new sequence type (ST61). RIRDC (Rural Industries Research and Development Corporation) MLST demonstrated sequence type 122 that is characteristic for strains causing haemorrhagic septicaemia.