Abstract
We surveyed Staphylococcus aureus contamination in 110 pork samples from 12 fresh meat markets in Nongchok district, Bangkok, Thailand, and performed antimicrobial susceptibility testing with the disk diffusion method. The prevalence of S. aureus was 28.18%, and 52 strains were isolated. Antimicrobial susceptibility testing using the disk diffusion method revealed that 80.77% of the isolates were resistant to tetracycline and 76.92% to ampicillin. All strains were 100% susceptible to cloxacillin, cefoxitin, gentamicin, and cefazolin. The high percentage of antibiotic resistance to tetracycline and ampicillin was attributed to their use in treating infections in farmed animals and their addition to animal food for disease prevention. Interestingly, the present study revealed the intermediate resistance of S. aureus (13.46% of S. aureus-positive pork samples) to vancomycin which is a common medicine for treating severe infection in humans, suggesting that the trend of resistance might increase and becoming a serious problem of public health for both humans and animals.
Highlights
Staphylococcus aureus is a Gram-positive coccus bacterium that tends to be arranged in grape-like clusters. is bacterium can grow in a medium containing up to 10% salt and is coagulasepositive [1]
In developing countries such as ailand, where meat is sold at fresh meat markets, the meat may be contaminated by organisms such as S. aureus, Escherichia coli, and Campylobacter jejuni [2,3,4]
A recent study reported the occurrence of pathogenic bacterial strains in the environment at a high probability such as S. aureus which can survive under unfavorable conditions on dry surfaces for a long period, even several months [10]; the contamination of equipment and hygiene in the slaughterhouse and of fresh meat in the open air markets might occur
Summary
Staphylococcus aureus is a Gram-positive coccus bacterium that tends to be arranged in grape-like clusters. is bacterium can grow in a medium containing up to 10% salt and is coagulasepositive [1]. S. aureus is found on the skin and mucous membranes of animals and humans and is an environmental contaminant [2]. In developing countries such as ailand, where meat is sold at fresh meat markets, the meat may be contaminated by organisms such as S. aureus, Escherichia coli, and Campylobacter jejuni [2,3,4]. S. aureus is the most common bacterial infection in humans and animals [1]. It can colonize humans and is the leading cause of bacteremia, infective endocarditis, and skin and soft tissue disease (e.g., impetigo and folliculitis); S. aureus causes invasive infections and toxin-mediated diseases [1, 5]. Multiple antimicrobial-resistant pathogenic bacteria have been recognized by the World Organization for Animal Health, the Food and Agriculture
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
