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Genotyping of Antimicrobial Resistance and Virulence in <Emphasis Type="Italic">Staphylococcus</Emphasis> Isolated from Food of Animal Origin in Mexico |
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| Authors: | Yosainix C Gaerste-Díaz Patricia Lozano-Zarain Carmen Torres Numa P Castro González Rosa del C Rocha-Gracia |
| Institution: | 1.Instituto de Ciencias, Posgrado en Microbiología. Centro de Investigaciones en Ciencias Microbiológicas. Edificio IC-11. Ciudad Universitaria. Colonia San Manuel,Benemérita Universidad Autónoma de Puebla,Puebla,Mexico;2.área Bioquímica y Biología Molecular,Universidad de la Rioja,Logro?o,Spain;3.Facultad de Ingeniería Agrohidráulica,Benemérita Universidad Autónoma de Puebla,Puebla,Mexico |
| Abstract: | Ninety-six methicillin-susceptible Staphylococcus aureus (MSSA) and 11 methicillin-resistant coagulase-negative staphylococci (MRCNS) were recovered from food of animal origin. Multi-drug resistance was detected in 34.1% of isolates. Tetracycline-resistant staphylococci harbored tetK gene (68.8%). Erythromycin/clindamycin-resistant staphylococci carried lnuA/lnuB genes frequently alone or combined with msrA gene. The sec gene was detected in 15.6% of MSSA and two isolates harbored the immune evasion cluster. The spa t337 predominated among MSSA strains. Two ermC-positive MRCNS isolates were observed, five mecA-positive carried SCCmec IVa and 6 were non-typeable by the IWG-SCC classification. These results demonstrate that food of animal origin can be a potential source for spreading of multidrug-resistance gene. |
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