Abstract
PurposeAmong the principal microorganisms transmitted to humans by foods of animal origin, Staphylococcus aureus stands out, causing a variety of diseases and with a wide potential for acquiring antimicrobial resistance. This work aimed to determine the prevalence of S. aureus, its multi-drug resistance (MDRSA), and the identification of methicillin-resistant Staphylococcus aureus (MRSA) in retail beef and pork in the state of Tamaulipas, Mexico.MethodsS. aureus strains isolated from retail meat were characterized by microbiological and molecular methods to determine phenotypic drug-resistance and detect MRSA strains.ResultsOf the 106 samples (54 from beef and 52 from pork) from 11 different cities, we detected a prevalence of S. aureus of 44.3% (47/106). A total of 87 S. aureus strains were identified; these presented 54 resistance patterns to different antimicrobials with a high prevalence of MDRSA (85%) and a low prevalence of MRSA strains (3%).ConclusionThese results indicate the presence of MDRSA and MRSA in retail beef and pork in Tamaulipas, representing a high risk for consumer health.
Highlights
Staphylococcus aureus (S. aureus) is a normal member of the bacterial microbiota in mammals and birds but, it can cause a wide spectrum of diseases, such as soft tissue infections, bacteremia, septicemia, and pneumonia (Aklilu et al 2010; García-Álvarez et al 2011; Grema et al 2015; Lozano et al 2016)
The prevalence of multidrug resistance (MDRSA) and methicillin-resistant Staphylococcus aureus (MRSA) shows different ranges of contamination in raw meat, which varies by type of meat, sampling period, continent, and retail outlet (OU et al 2017)
The aim of this study was to determine the prevalence of S. aureus, its multidrug resistance (MDRSA), and the identification of methicillin-resistant Staphylococcus aureus (MRSA) in retail sale of beef and pork in Tamaulipas, Mexico
Summary
Staphylococcus aureus (S. aureus) is a normal member of the bacterial microbiota in mammals and birds but, it can cause a wide spectrum of diseases, such as soft tissue infections, bacteremia, septicemia, and pneumonia (Aklilu et al 2010; García-Álvarez et al 2011; Grema et al 2015; Lozano et al 2016). Reports of communityacquired S. aureus have increased with this being detected in farm, wild, and service animals (Grema et al 2015; Lozano et al 2016; Aires de Sousa 2017). Methicillin-resistant S. aureus (MRSA) commonly exhibit multiple resistances to β-lactams, aminoglycosides, fluoroquinolones, and chloramphenicol (Normanno et al 2007a, b; Guven et al 2010). The prevalence of MDRSA and MRSA shows different ranges of contamination in raw meat, which varies by type of meat, sampling period, continent, and retail outlet (OU et al 2017). The aim of this study was to determine the prevalence of S. aureus, its multidrug resistance (MDRSA), and the identification of methicillin-resistant Staphylococcus aureus (MRSA) in retail sale of beef and pork in Tamaulipas, Mexico
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