TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Monistero, Valentina A1 - Graber, Hans Ulrich A1 - Pollera, Claudia A1 - Cremonesi, Paola A1 - Castiglioni, Bianca A1 - Bottini, Enriqueta A1 - Ceballos-Marquez, Alejandro A1 - Lasso-Rojas, Laura A1 - Krömker, Volker A1 - Wente, Nicole A1 - Petzer, Inge-Marie A1 - Santisteban, Carlos A1 - Runyan, Jeff A1 - Veiga dos Santos, Marcos A1 - Gomes Alves, Bruna A1 - Piccinini, Renata A1 - Bronzo, Valerio A1 - Abbassi, Mohamed Salah A1 - Ben Said, Meriam A1 - Moroni, Paolo T1 - Staphylococcus aureus Isolates from Bovine Mastitis in Eight Countries: Genotypes, Detection of Genes Encoding Different Toxins and Other Virulence Genes JF - Toxins N2 - Staphylococcus aureus is recognized worldwide as one of the major agents of dairy cow intra-mammary infections. This microorganism can express a wide spectrum of pathogenic factors used to attach, colonize, invade and infect the host. The present study evaluated 120 isolates from eight different countries that were genotyped by RS-PCR and investigated for 26 different virulence factors to increase the knowledge on the circulating genetic lineages among the cow population with mastitis. New genotypes were observed for South African strains while for all the other countries new variants of existing genotypes were detected. For each country, a specific genotypic pattern was found. Among the virulence factors, fmtB, cna, clfA and leucocidins genes were the most frequent. The sea and sei genes were present in seven out of eight countries; seh showed high frequency in South American countries (Brazil, Colombia, Argentina), while sel was harboured especially in one Mediterranean country (Tunisia). The etb, seb and see genes were not detected in any of the isolates, while only two isolates were MRSA (Germany and Italy) confirming the low diffusion of methicillin resistance microorganism among bovine mastitis isolates. This work demonstrated the wide variety of S. aureus genotypes found in dairy cattle worldwide. This condition suggests that considering the region of interest might help to formulate strategies for reducing the infection spreading. KW - mastitis KW - dairy cow KW - S. aureus KW - genotypes KW - virulence genes KW - Staphylococcus aureus KW - Euterentzündung KW - Milchkuh KW - Infektion KW - Gen Y1 - 2018 UN - https://nbn-resolving.org/urn:nbn:de:bsz:960-opus4-12267 U6 - https://doi.org/10.25968/opus-1226 DO - https://doi.org/10.25968/opus-1226 VL - 2018 IS - 10(6) SP - 247 ER -