Occurrence and Antimicrobial Resistance Profiles of Salmonella Species in Retail Meat Products

Abstract

In the present study, a total of 225 retail meat products (poultry meat, ground beef, and beef samples) were tested for the prevalence of Salmonella. Of these, 50 (22.2%) were positive for Salmonella. Overall, the pathogen was detected in 22 (29.3%) samples of poultry meat (n = 75), 16 (21.3%) samples of ground beef (n = 75), and 12 (16%) samples of beef (n = 75). The most common isolate was Salmonella enterica serovar Typhimurium (9.8%), followed by S. bongori species (8.9%) and S. enterica subsp. diarizonae (3.5%). The Salmonella strains isolated were also examined for antimicrobial resistance patterns and production of β-lactamase enzyme. The resistance levels of the isolates against 14 different antimicrobial agents were tested by the disk diffusion method. None of the strains exhibited resistance to cefotaxime, ciprofloxacin, norfloxacin, or levofloxacin. However, the highest resistance rates in the meat isolates were 64% each for ampicillin and cephazolin and 56% for amoxicillin-clavulanic acid. A total of 62% of the 50 Salmonella strains were multiresistant to three or more antimicrobial agents. The exhibited multiple resistance to four or more antimicrobial drugs was 32%. Furthermore, none of the isolates had β-lactamase enzyme activity.

Prevalence and antimicrobial resistance of Salmonella serotypes isolated from retail chicken meat and giblets in Iran

“…in chicken products obtained by other authors varied between 0 and 100% [23,24]. In this study, the overall prevalence of Salmonella in chicken meat and giblets was 19.8% (111/560).The contamination rate of chicken meat samples (29%) is in agreement with results reported in Belgium [25], the United Kingdom [26], Iran [27],China [28], Turkey [29], Iraq [30], and the Russian Federation [31], but lower than results found in Iran [20,32] and many other countries, such as China, Mexico, and Poland [16,18,[33][34][35]. The incidence of Salmonella spp.…”

“…Despite increasing resistance to commonly used antibiotics in animal and human medicine globally, the numbers of multidrug-resistant Salmonella isolates continues to increase [2,11]. The percentage of multidrug-resistant Salmonella strains observed in this study (62.2%) is higher than that reported in Italy (2.3%) [49] and Iran (23.5%) [20], although lower than that found in Morocco (75.43%) [17], Portugal (75%) [50], Turkey (100%) [13,16,29], Spain (100%) [2], Brazil (100%) [51], Nepal (100%) [52], the United States (92%) [53], Mexico (85.4%) [34], and China (80%) [54]. In the present study, all S. Hadar isolates showed multidrug resistance to nalidixic acid and tetracycline (Table 4).…”

Antibiotic Resistance Pattern and Biofilm Formation Ability of Clinically Isolates of Salmonella enterica Serotype typhimurium

“…All isolates showed a relatively high degree of sensitivity to ciprofloxacin (92%) and ceftriaxone (95%), (commonly used fluoroquinolones and cephalosporins antibiotics), which may reflect restricted use of them in avian. This finding is in accordance with those reported from Vietnam (17,18) and is in contrast to report from Turkey (19).…”

Tavuk Karkaslarından İzole Edilen Salmonella spp. ve Listeria monocytogenes Prevalansı, Antimikrobiyal Direnci ve Moleküler Karakterizasyonu

“…In the current study, 93.75% of the Salmonella isolates was classified as multidrug resistant. Our results were relatively high according to some studies [15,16] while showed similarities to others [4,6] .…”