scholarly journals Staphylococcus aureus Isolated From Retail Meat and Meat Products in China: Incidence, Antibiotic Resistance and Genetic Diversity

2018 ◽  
Vol 9 ◽  
Author(s):  
Shi Wu ◽  
Jiahui Huang ◽  
Qingping Wu ◽  
Jumei Zhang ◽  
Feng Zhang ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Meat Products ◽  
Retail Meat

Prevalence, Antibiotic Resistance, and Molecular Characterization of Salmonella Serovars in Retail Meat Products

2011 ◽  
Vol 74 (1) ◽  
pp. 161-166 ◽  
Author(s):  
JI-YEON HYEON ◽  
JUNG-WHAN CHON ◽  
IN-GYUN HWANG ◽  
HYO-SUN KWAK ◽  
MOO-SANG KIM ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Foodborne Pathogens ◽  
Molecular Subtypes ◽  
Meat Products ◽  
Chicken Meat ◽  
Source Tracking ◽  
Traditional Markets ◽  
Retail Meats ◽  
Retail Meat

The prevalence of Salmonella was determined in chicken meat (n = 26), beef (n = 49), and pork (n = 56) collected from wholesale markets, retail stores, and traditional markets in Seoul, South Korea, in 2009. Antibiotic resistance was assessed, and the molecular subtypes of Salmonella isolates were ascertained using an automated repetitive sequence–based PCR (rep-PCR) system (DiversiLab). A total of 18 Salmonella strains were isolated from 17 of 131 samples: 16 strains from each of 16 samples and 2 strains from the same pork sample. The prevalence of Salmonella from the retail meats was 2.0% in beef, 8.9% in pork, and 42.3% in chicken meat. Among 10 different serotypes, Salmonella enterica Panama was recovered from a beef sample, and Salmonella London and Salmonella Montevideo were the predominant serotypes from pork and chicken meat, respectively. The highest antibiotic resistance observed was to erythromycin (100%) followed by streptomycin (22.2%) and tetracycline and chloramphenicol (16.7%). Of the 18 isolates, 5 (27.8%) were resistant to two or more antibiotics, and 1 isolate from chicken meat was resistant to eight antibiotics, including cephalosporins. Differentiation between all of the Salmonella isolates except between Salmonella Montevideo and Salmonella London was successfully performed with the automated rep-PCR system, indicating that it can be added to the toolbox for source tracking of foodborne pathogens associated with outbreaks.

Antimicrobial Susceptibility of Staphylococcus aureus from Retail Ground Meats

2011 ◽  
Vol 74 (10) ◽  
pp. 1625-1629 ◽  
Author(s):  
ALINA KELMAN ◽  
YEE-ANN SOONG ◽  
NICOLE DUPUY ◽  
DANIEL SHAFER ◽  
WILLIAM RICHBOURG ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Random Sampling ◽  
Meca Gene ◽  
Meat Products ◽  
The United States ◽  
Relative Lack ◽  
Ground Pork ◽  
Retail Meat ◽  
Additional Resistance ◽  
Low Rate

The aim of this study was to characterize antimicrobial resistance in Staphylococcus aureus, including methicillin-resistant S. aureus (MRSA), recovered from raw retail meat products purchased in the Washington, D.C., area. From March to August 2008, 694 samples of ground beef (n = 198), ground pork (n = 300), and ground turkey (n = 196) were collected by random sampling from stores of three grocery chains. In total, 200 S. aureus isolates (29%) were recovered by direct plating. When tested for susceptibility to 22 antimicrobials, 69% of the S. aureus isolates were resistant to tetracycline, 26% to penicillin, 17% to ampicillin, 13% to methicillin, 8% to erythromycin, 4.5% to clindamycin, 1.5% to gentamicin, and 0.5% to chloramphenicol, oxacillin, cefoxitin, or quinupristin-dalfopristin. However, 27% of the isolates were susceptible to all tested antimicrobials. More turkey and pork isolates were resistant to ampicillin, penicillin, and tetracycline than were beef isolates (P < 0.05). Additionally, 17% of the turkey and 17% of the pork isolates were resistant to methicillin (MIC ≥ 16 μg/ml), whereas no beef isolates were resistant to the antimicrobial agent. A single MRSA (methicillin MIC > 32 μg/ml) isolate containing the mecA gene with additional resistance to erythromycin, clindamycin, oxacillin plus 2% NaCl, cefoxitin, ampicillin, penicillin, quinupristindalfopristin, tetracycline, and gentamicin was recovered from one pork sample. The presence of antimicrobial-resistant S. aureus, coupled with the relative lack of such studies in the United States, suggests that further investigations on MRSA in the food supply are needed despite the low rate of MRSA found in this particular study.

Genetic Diversity in Staphylococcus aureus and Its Relation to Biofilm Production

2021 ◽  
Author(s):  
Furqan Awan ◽  
Muhammad Muddassir Ali ◽  
Muhammad Hassan Mushtaq ◽  
Muhammad Ijaz
Keyword(s):  
Genetic Diversity ◽  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Point Mutations ◽  
Economic Problem ◽  
Cellular Growth ◽  
Recurrent Infections ◽  
Biofilm Production ◽  
Variable Characteristic ◽  
Different Levels

Staphylococcus aureus (S. aureus) has been a substantial economic problem due to its antibiotic resistance, persistence inside host and recurrence of disease. It escapes from immunity because of its intra-cellular growth. Moreover, it forms biofilm on both living and in-animate surfaces that leads to recurrent infections and growth in food industry, respectively. Further, S. aureus undergoes the vertical and horizontal evolution that has genetically diversified the bacterial population. All the factors such as point mutations, plasmids, phages etc. have played their roles in diversifying this bacterium. Many bacterial physiological characteristics have been affected by genetic diversity. Biofilm forming ability is also considered as a variable characteristic of S. aureus that can help the bacteria to survive in different environments with different levels of biofilm production. In adapting the environment, S. aureus also forms different types of biofilm for its better survival. How genetic diversity is playing its role in this division of S. aureus is yet to be revealed. This chapter focuses on the factors related to genetic diversity and biofilm formation of S. aureus.

scholarly journals Phenotypic and Genotypic Assessment of Antibiotic Resistance of Staphylococcus aureus Bacteria Isolated from Retail Meat

2020 ◽  
Vol Volume 13 ◽  
pp. 1339-1349
Author(s):  
Zeinab Torki Baghbaderani ◽  
Amir Shakerian ◽  
Ebrahim Rahimi
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Retail Meat

The incidence and antibiotic resistance profiles of Salmonella spp. on Irish retail meat products

1999 ◽  
Vol 16 (6) ◽  
pp. 623-631 ◽  
Author(s):  
G Duffy ◽  
O.M Cloak ◽  
M.G O'Sullivan ◽  
A Guillet ◽  
J.J Sheridan ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Meat Products ◽  
Salmonella Spp ◽  
Retail Meat

scholarly journals The prevalence, genetic diversity and antibiotic resistance of Staphylococcus aureus in milk, whey, and cheese from artisan farm dairies

2017 ◽  
Vol 65 ◽  
pp. 20-27 ◽  
Author(s):  
Lisbeth Mehli ◽  
Sunniva Hoel ◽  
Gunn Merethe Bjørge Thomassen ◽  
Anita Nordeng Jakobsen ◽  
Hanne Karlsen
Keyword(s):  
Genetic Diversity ◽  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Milk Whey

scholarly journals Antibiotic resistance is lower in Staphylococcus aureus isolated from antibiotic-free raw meat as compared to conventional raw meat

2018 ◽  
Author(s):  
Haskell Kyler J. ◽  
Schriever Samuel R. ◽  
Fonoimoana Kenisi D. ◽  
Haws Benjamin ◽  
Hair Bryan B. ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Meat Products ◽  
Human Consumption ◽  
Raw Meat ◽  
Resistance Selection ◽  
Poultry Products ◽  
Frequent Use ◽  
Resistant Strains ◽  
Drug Resistant Strains

AbstractThe frequent use of antibiotics contributes to antibiotic resistance in bacteria, resulting in an increase in infections that are difficult to treat. Livestock are commonly administered antibiotics in their feed, but there is current interest in raising animals that are only administered antibiotics during active infections. Staphylococcus aureus (SA) is a common pathogen of both humans and livestock raised for human consumption. SA has achieved high levels of antibiotic resistance, but the origins and locations of resistance selection are poorly understood. We determined the prevalence of SA and MRSA in conventional and antibiotic-free (AF) meat products, and also measured rates of antibiotic resistance in these isolates. We isolated SA from raw conventional turkey, chicken, beef, and pork samples and also from AF chicken and turkey samples. We found that SA contamination was common, with an overall prevalence of 22.64% (range of 2.78-30.77%) in conventional meats and 13.0% (range of 12.5-13.2%) in AF poultry meats. MRSA was isolated from 15.72% of conventional raw meats (range of 2.78-20.41%) but not from AF-free meats. The degree of antibiotic resistance in conventional poultry products was significantly higher vs AF poultry products for a number of different antibiotics, and while multi-drug resistant strains were relatively common in conventional meats none were detected in AF meats. The use of antibiotics in livestock contributes to high levels of antibiotic resistance in SA found in meat products. Our results support the use of AF conditions for livestock in order to prevent antibiotic resistance development in SA.

Molecular Characterization of Multidrug-Resistant Proteus mirabilis Isolates from Retail Meat Products

2005 ◽  
Vol 68 (7) ◽  
pp. 1408-1413 ◽  
Author(s):  
SHIN-HEE KIM ◽  
CHENG-I WEI ◽  
HAEJUNG AN
Keyword(s):  
Antibiotic Resistance ◽  
Proteus Mirabilis ◽  
Meat Products ◽  
Antibiotic Resistance Genes ◽  
Multidrug Resistant ◽  
Antibiotic Resistant ◽  
Resistant Phenotype ◽  
Class 1 ◽  
Retail Meat

Sixty-four multidrug-resistant isolates of Proteus mirabilis were collected from retail meat products in Oklahoma. The isolates showed four different patterns of antibiotic resistance based on their resistant phenotype and genotypes. Most of these isolates were resistant to ampicillin, tetracycline, gentamycin, and kanamycin. Class 1 integrons were detected as a common carrier of the antibiotic-resistant genes, such as aadA1, aadB, and aadA2. A few isolates (9%) contained class 2 integrons with three gene cassettes included: dhfr1, sat1, and aadA1. These isolates were even resistant to nalidixic acid due to mutations in gyrA and parC. All ampicillin-resistant isolates contained blaTEM-1. Plasmids that contained class 1 or 2 integrons and blaTEM-1 were able to be transferred from P. mirabilis isolates into Escherichia coli by conjugation, indicating that conjugal transfer could contribute to the dissemination of antibiotic resistance genes between the Enterobacteriaceae species.

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