Antimicrobial resistance profile of Staphylococcus aureus isolated from raw meat: A research for methicillin resistant Staphylococcus aureus (MRSA)

Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) has emerged as a risk factor for patients in general population and particularly in immunocompromised patients. As a matter of fact, it can produce serious infections that may then evolve in septicaemia. However, transmission of MRSA from food to people can represent a serious problem only for immunocompromised people. Vancomycin is the elective antimicrobial commonly used in case of MRSA infection, but S. aureus strains with reduced sensibility to vancomycin are emerging worldwide. We isolated 42 strains of S. aureus from 176 samples of raw meat (poultry, pork and beef) during a one-year survey. Each strain was tested against twelve antimicrobial to verify antibiotic resistance. We found no evidence of methicillin-, teicoplanin-or vancomycin-resistance, but a lot of multiresistant microorganisms, i.e. resistant to three or more antibiotics. These results confirm the hypothesis that antibiotics resistance is present not only in nosocomial bacteria, but also in community environments microorganisms.

Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat

“…Erythromycin resistance found in our study was higher than that observed by Bertollatti et al (2003). Vancomycin resistance determined in the study by Pesavento et al (2007) was similar to that found in our study whereas important differences occurred in tetracycline resistance. Duman (2007) found that erythromycin, tetracycline, and chloramphenicol resistances were different from ours while vancomycin and ciprofloxacin resistances of S. aureus were similar to ours.…”

“…The development of resistance both in human and animal bacterial pathogens has been associated with the extensive therapeutic use of antimicrobials or with their administration as growth promoters in food animal production (Normanno et al 2007). Antibiotics have been extremely useful for the treatment of infectious diseases in the last 50 years and have become indispensable for the treatment of many diseases formerly known as lethal (Pesavento et al 2007). The use of antibiotics and other antimicrobial agents throughout the food chain contributes to the emergence of resistant bacteria that can be passed directly to humans after ingestion (Demirtürk & Demirdal 2004;Ruzauskas et al 2010).…”

Characterization of Dutch Staphylococcus aureus from bovine mastitis using a Multiple Locus Variable Number Tandem Repeat Analysis

“…Transfer of antibiotic resistance from human to animal isolates or the other way around has been a major concern (Pesavento et al, 2007;Zadoks et al, 2002). Host specificity of clones may reduce the chance that human-derived antibiotic-resistant S. aureus isolates are transmitted to cattle, although bovine mastitis may occasionally be caused by human-derived isolates.…”

Isolation, Identification and Antimicrobial Resistance Profile of Staphylococcus aureus and Occurrence of Methicillin Resistant S. aureus Isolated from Mastitic Lactating Cows in and around Assosa Town, Benishangul Gumuz Region, Ethiopia

“…The usage of antibiotics correlates with the emergence and maintenance of antibiotic resistant traits within pathogenic strains [9].…”