Publications by authors named "Angelica Godinez-Oviedo"

There is a lack of information about Salmonella enterica strains under acidic conditions and their association with their genome. This study characterized intraspecies variability in the growth of 167 S. enterica isolates under two acid conditions (pH 4 and 5) and linked to the whole genome sequencing (WGS) data.

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Article Synopsis
  • Researchers studied the genomic diversity of non-typhoidal Salmonella in raw chicken across three central Mexican states, analyzing 192 strains collected from various retail sources using whole-genome sequencing.
  • Among the twenty identified serovars, Infantis, Schwarzengrund, and Enteritidis were the most prevalent, with variations in serovar distribution and antimicrobial resistance (AMR) genes linked to different states, years, seasons, and retail establishments.
  • The study found a total of 145 virulence genes and classified strains into 32 virulotypes, linking several strains to significant SNP clusters that matched global isolates, providing insights for Salmonella epidemiology and risk management strategies.
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  • The study investigates the population structure and antimicrobial resistance (AMR) genes in a common foodborne pathogen found in Mexico, analyzing 2,561 strains.
  • Key sources of these strains include food (44.28%), the environment (27.41%), animals (24.83%), and humans (3.48%), highlighting the importance of food safety.
  • The research identifies prevalent serovars, frequent sequence types, and 78 AMR genes across various classes, offering critical data for public health strategies to combat foodborne diseases and enhance genomic monitoring.
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Chicken meat is often associated withSalmonella entericacontamination worldwide. This study proposes a risk assessment model for human salmonellosis linked to the domestic consumption of chicken meat in the central region of Mexico, incorporating genotypic and phenotypic data. SixS.

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  • The study focuses on using SiO particles to protect gold nanoparticles (AuNPs) from aggregation, enhancing their stability and functionality.
  • Two sol-gel methods were used to synthesize silica-coated green AuNPs, which were characterized using various techniques such as SEM and FTIR.
  • The results revealed different shapes and distributions of the nanoparticles based on synthesis method, while both methods exhibited similar antibacterial performance against pathogens.
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To prevent and control foodborne diseases, there is a fundamental need to identify the foods that are most likely to cause illness. The goal of this study was to rank 25 commonly consumed food products associated with Salmonella enterica contamination in the Central Region of Mexico. A multicriteria decision analysis (MCDA) framework was developed to obtain an S.

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Article Synopsis
  • - The study analyzed Salmonella enterica in mango, tomato, and raw chicken samples from three central Mexican states, finding a higher prevalence and concentration in chicken (24.9%) compared to mango (1.3%) and tomato (1.1%).
  • - Researchers identified 284 S. enterica isolates, with 7 virulotypes and a majority (68.7%) belonging to one type (V2); most isolates had significant variability in mobile genetic elements and 91.5% showed antibiotic resistance.
  • - The findings can inform risk assessments for consuming these foods and help select strains for further research on the variability of the pathogen.
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In Mexico, information of cases linked to food consumption is scarce. The objective of this article was to assess how affect public health in Mexico. To conduct this study, data on the epidemiology of nontyphoidal (NTS), Typhi, and Paratyphi A collected from 2000 to 2017 through the National Epidemiological Surveillance System of Mexico (Sistema Nacional de Vigilancia Epidemiológica de Mexico [SINAVE]) were used.

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In Mexico, there is limited information regarding food consumer behaviors at home. The knowledge of food consumption and food handling practices can help to determine more realistically the exposure to different hazards, such as Salmonella spp. on the population.

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Leafy greens have been associated with foodborne disease outbreaks in different countries. To decrease microbial contamination of leafy greens, chemical agents are commonly used; however, a number of studies have shown these agents to have limited antimicrobial effect against pathogenic bacteria on vegetables. The objective of this study was to compare the antibacterial effect of Hibiscus sabdariffa calyx extracts (water, methanol, acetone, and ethyl acetate), sodium hypochlorite, acetic acid, and colloidal silver against foodborne bacteria on leafy greens.

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Several studies have observed that a conventional PCR protocol using primers LM1 and LM2 for the identification of gene hlyA Listeria monocytogenes generates non-specific PCR amplifications and false positives. For this reason in this study, we provide a modified PCR protocol that improves the specificity of the LM1 and LM2 primers.

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Chili peppers are a very important crop in Mexico. However, these peppers have been associated with Salmonella infection outbreaks in the United States, and Salmonella and diarrheagenic Escherichia coli pathotypes have been isolated from jalapeño and serrano peppers in Mexico. To decrease microbial contamination of fruits and vegetables, chemical agents are commonly used; however, chemical agents used to eliminate pathogenic bacteria on vegetables have a limited antimicrobial effect.

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