Occurrence of virulence-associated genes in Streptococcus uberis and Streptococcus parauberis isolated from bovine mastitis
نویسندگان
چکیده
Streptococcus uberis is one of the most important mastitis-causing pathogens. Although pathogenesis and virulence factors required for intramammary infection development are not yet well established, several putative virulence-associated genes have been described. This work aimed to investigate presence ten known in S. isolated from subclinical or clinical mastitis its closely related species parauberis 135 dairy farms Czech Republic. The PCR analysis detected that all examined isolates possessed at least four carried eight out genes. All were positive oppF, gapC sua Among prevalent skc (98%) pauA (97%) also found. hasA hasB always present together 94% isolates. cfu lbp 6% 2%, respectively. In isolates, 14 different gene profiles observed. frequent profile was hasA+ hasB+ sua+ skc+ pauA+ gapC+ oppF with variable hasC, observed 86% tested occurring 127 farms. identified very sporadically and, although it uberis, only a rare occurrence
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ژورنال
عنوان ژورنال: Veterinarni Medicina
سال: 2022
ISSN: ['1805-9392', '0375-8427']
DOI: https://doi.org/10.17221/95/2021-vetmed