Detection of β-Lactamase-Producing Proteus mirabilis Strains of Animal Origin in Andhra Pradesh, India and Their Genetic Diversity

Proteus mirabilis is abundant in soil and water. Although this bacterium is part of the normal human intestinal flora, it can cause serious infections in humans, including complicated urinary tract infections. This pathogen is also commonly associated with multidrug resistance. In the present study,...

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Veröffentlicht in:Journal of food protection 2021-08, Vol.84 (8), p.1374-1379
Hauptverfasser: Chinnam, Bindu Kiranmayi, Nelapati, Subhashini, Tumati, Srinivasa Rao, Bobbadi, Suresh, Chaitanya Peddada, Venkata, Bodempudi, Bhavana
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container_end_page 1379
container_issue 8
container_start_page 1374
container_title Journal of food protection
container_volume 84
creator Chinnam, Bindu Kiranmayi
Nelapati, Subhashini
Tumati, Srinivasa Rao
Bobbadi, Suresh
Chaitanya Peddada, Venkata
Bodempudi, Bhavana
description Proteus mirabilis is abundant in soil and water. Although this bacterium is part of the normal human intestinal flora, it can cause serious infections in humans, including complicated urinary tract infections. This pathogen is also commonly associated with multidrug resistance. In the present study, analysis of 1,093 samples from foods of animal origin and animal intestinal samples recovered 232 P. mirabilis isolates identified by PCR assay. Of these 232 isolates, 72 produced β-lactamase (determined by both phenotypic and genotypic methods), with the highest prevalence in poultry cloacal swabs (11.82%) followed by mutton (9.18%), khoa (6.32%), pork (5.63%), pig rectal swabs (5.52%), beef (5.45%), and chicken (5.13%) but none from sheep rectal swabs and bovine rectal swabs. Among β-lactamase genes, blaTEM was the predominant gene detected (59 isolates) followed by blaOXA (11 isolates), blaSHV (5 isolates), blaFOX (5 isolates), blaCIT (4 isolates), blaCTX-M1 and blaCTX-M9 (2 isolates each) and blaCTX-M2, blaDHA, and blaEBC (1 isolate each). None of the isolates carried blaACC, blaMOX, or carbapenemase genes (blaVIM, blaIMP, blaKPC, and blaNDM-1). Dendrogram analysis of enterobacterial repetitive intergenic consensus sequences and repetitive extragenic palindromic sequences obtained with PCR analysis of β-lactamase-producing isolates revealed 63 isolates, but 9 isolates did not yield bands. The analysis revealed that 6.58% of the samples had β-lactamase-producing P. mirabilis isolates that may affect food safety and contaminate the environment. Further genotyping revealed the genetic relationships between isolates of different origin. These findings emphasize the need for careful use of antibiotics to control the spread of β-lactamase-producing bacteria.
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Although this bacterium is part of the normal human intestinal flora, it can cause serious infections in humans, including complicated urinary tract infections. This pathogen is also commonly associated with multidrug resistance. In the present study, analysis of 1,093 samples from foods of animal origin and animal intestinal samples recovered 232 P. mirabilis isolates identified by PCR assay. Of these 232 isolates, 72 produced β-lactamase (determined by both phenotypic and genotypic methods), with the highest prevalence in poultry cloacal swabs (11.82%) followed by mutton (9.18%), khoa (6.32%), pork (5.63%), pig rectal swabs (5.52%), beef (5.45%), and chicken (5.13%) but none from sheep rectal swabs and bovine rectal swabs. Among β-lactamase genes, blaTEM was the predominant gene detected (59 isolates) followed by blaOXA (11 isolates), blaSHV (5 isolates), blaFOX (5 isolates), blaCIT (4 isolates), blaCTX-M1 and blaCTX-M9 (2 isolates each) and blaCTX-M2, blaDHA, and blaEBC (1 isolate each). None of the isolates carried blaACC, blaMOX, or carbapenemase genes (blaVIM, blaIMP, blaKPC, and blaNDM-1). Dendrogram analysis of enterobacterial repetitive intergenic consensus sequences and repetitive extragenic palindromic sequences obtained with PCR analysis of β-lactamase-producing isolates revealed 63 isolates, but 9 isolates did not yield bands. The analysis revealed that 6.58% of the samples had β-lactamase-producing P. mirabilis isolates that may affect food safety and contaminate the environment. Further genotyping revealed the genetic relationships between isolates of different origin. 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subjects Animals
Annealing
Anti-Bacterial Agents - pharmacology
Antibiotics
Bacteria
Bacterial Proteins - genetics
beta-Lactamases - genetics
Carbapenemase
Cattle
DNA fingerprinting
Fingerprinting
Flora
Food contamination
Food contamination & poisoning
Food safety
Genes
Genetic diversity
Genetic relationship
Genetic Variation
Genotyping
India
Intestinal microflora
Intestine
Livestock
Microbial Sensitivity Tests
Multidrug resistance
Mutton
Nosocomial infections
Plasmids
Pneumonia
Pork
Proteus mirabilis
Proteus mirabilis - genetics
Protozoa
Rectum
Sheep
Soil contamination
Soil water
Strains (organisms)
Swine
Thermal cycling
Urinary tract
β Lactamase
title Detection of β-Lactamase-Producing Proteus mirabilis Strains of Animal Origin in Andhra Pradesh, India and Their Genetic Diversity
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