The objectives of this study were to determine the prevalence of
Campylobacter jejuni and
Campylobacter coli in retail beef, beef livers, and pork meats purchased from the Tulsa (OK, USA) area and to further characterize the isolates obtained through antimicrobial susceptibility testing. A
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The objectives of this study were to determine the prevalence of
Campylobacter jejuni and
Campylobacter coli in retail beef, beef livers, and pork meats purchased from the Tulsa (OK, USA) area and to further characterize the isolates obtained through antimicrobial susceptibility testing. A total of 97 chilled retail beef (50 beef livers and 47 other cuts), and 100 pork samples were collected. The prevalence of
Campylobacter in beef livers was 39/50 (78%), while no
Campylobacter was isolated from the other beef cuts. The prevalence in pork samples was 2/100 (2%). A total of 108
Campylobacter isolates (102 beef livers isolates and six pork isolates) were subjected to antimicrobial resistance profiling against sixteen different antimicrobials that belong to eight different antibiotic classes. Of the six pork
Campylobacter coli isolates, four showed resistance to all antimicrobials tested. Among the beef liver isolates, the highest antibiotic resistances were to tetracyclines and β-lactams, while the lowest resistances were to macrolides, aminoglycosides, lincosamides, and phenicols. Resistances to the fluoroquinolone, macrolide, aminoglycoside, tetracycline, b-lactam, lincosamide, and phenicol antibiotic classes were significantly higher in
Campylobacter coli than
Campylobacter jejuni isolates. Multidrug Resistance (MDR) among the 102
Campylobacter (33
Campylobacter jejuni and 69
Campylobacter coli) beef liver isolates was significantly higher in
Campylobacter coli (62%) than
Campylobacter jejuni (39%). The high prevalence of
Campylobacter in retail beef livers and their antimicrobial resistance raise concern about the safety of these retail products.
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