Detection of virulence factors in Klebsiella pneumonia strains isolates from bovine mastitis

Bovine mastitis is one of the epidemic diseases in dairy cattle, that it was created by various infectious agents. The aim of this study was tracking of these bacteria in the cases such as bovine subclinical and clinical mastitis and studying of virulence factors of this bacteria. Overall, 130milk samples were collected from dairy cattle's in the Chaharmahal and Bakhtiyari state scale that they are affected to mastitis and then they were isolated microbial culture and molecular confirmation of Klebsiella pneumonia strains, Presence of the most prevalent of virulence factors in these strains was detected by PCR method. Of 130milk samples examined, 30 samples were positive (15.38%) to Klebsiella pneumonia. Of these strains, the most of virulence factors were detected in this bacteria: so that fimH and papA genes by excess of 65and 90% had the highest prevalent and sfa/focDE gene with 15% presence had the lowest rate of evaluation virulence gene in this isolates. Presence of kinds of virulence factors in the Klebsiella pneumonia isolates will have indicated direct intervention these factors for bacterium pathogen and it is needed to detection of Klebsiella pneumonia pathogen, it must study presence distribution of virulence factors.