PREVALENCE AND CHARACTERIZATION OF METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS ISOLATES FROM RETAIL MEAT IN SOUTH ITALY

This study aimed to estimate the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) from 500 retail meat products in South Italy from June 2016 to June 2018, including 150 raw bovine, 120 pork, 150 chicken and 80 horse meat. After bacteriological analysis, 12 (2.4%) samples tested posi...

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Bibliographic Details
Published inItalian journal of food science Vol. 32; no. 2; p. 410
Main Authors Basanisi, M.G, La Bella, G, Nobili, G, Tola, S, Cafiero, M.A, La Salandra, G
Format Journal Article
LanguageEnglish
Published Pinerolo Chiriotti Editori S.r.l 01.04.2020
Codon Publications
Subjects
Antiinfectives and antibacterials
Cephalothin
Contamination
Disease susceptibility
Enterotoxins
Food chains
Food safety
Genes
Genetic aspects
Health aspects
Horsemeat
Hygiene
Meat
Meat products
Methicillin
Microbial drug resistance
Multidrug resistance
Oxacillin
Pork
Staphylococcal enterotoxin H
Staphylococcus aureus
Staphylococcus infections
Tetracyclines
France
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Summary:This study aimed to estimate the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) from 500 retail meat products in South Italy from June 2016 to June 2018, including 150 raw bovine, 120 pork, 150 chicken and 80 horse meat. After bacteriological analysis, 12 (2.4%) samples tested positive for MRSA. Isolates were characterized by antimicrobial susceptibility, spa typing and MLST. MRSA were also investigated by PCR for the presence of enterotoxins, lukF-PV-lukS-PV and icaA-icaD genes. Antimicrobial susceptibility testing showed that MRSA isolates were multidrug resistant. One strain harboured PVL-encoding genes (8.3%). Seven MRSA isolates of 12 (58.3%) carried seh enterotoxin encoding gene. The icaA and icaD genes were both present in 10 isolates (83.3%). MRSA isolates in retail meat may serve as a potential source of exposure to MRSA for humans and monitoring of food-producing animals and hygiene standards should be strictly and carefully considered throughout the entire meat chain to ensure food safety. Keywords: biofilm, food safety, Methicillin-resistant Staphylococcus aureus, Panton Valentine Leukocidin, retail meat
ISSN:1120-1770
2239-5687
DOI:10.14674/IJFS-1629