Rafael Enrique Castro-Vargas

ORCID: 0000-0003-1949-7515
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About
Contact & Profiles
Research Areas
  • Salmonella and Campylobacter epidemiology
  • Antibiotic Resistance in Bacteria
  • Viral gastroenteritis research and epidemiology
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Ion Transport and Channel Regulation
  • Food Safety and Hygiene
  • Animal health and immunology
  • Birth, Development, and Health
  • Escherichia coli research studies
  • Listeria monocytogenes in Food Safety
  • Renal and related cancers

Michigan State University
2024

University of Tolima
2020-2022

Salmonella Dublin latent carrier cows pose a significant risk for transmitting infection to newborn calves through intra-uterine transmission and bacterial shedding in feces colostrum at calving. Vaccination of these carriers’ dams during late gestation can enhance the immunity against S. Dublin. This could reduce activation dormant bacterium periparturient immune dysfunction period, thereby reduc­ing early-life offspring until vacci­nation is possible. study aimed evaluate extent which...

10.21423/aabppro20249144 article EN cc-by American Association of Bovine Practitioners Conference Proceedings 2025-03-26

Salmonella is one of the most common foodborne pathogens, emergence antibiotic-resistant strains which increasing. The aim this study was to phenotypically and genotypically characterize fluoroquinolone resistance isolates from broiler humans in two regions Colombia.Salmonella (n=49) were evaluated. phenotype antibiotic assessed by an automated method agar diffusion method, as well presence quinolone genes qnrA, qnrB, qnrC, qnrD, qnrS, aac(6')-Ib determined polymerase chain reaction.Strains...

10.14202/vetworld.2021.1767-1773 article EN cc-by Veterinary World 2021-07-07

Aquaporins (AQPs) are proteins with various functions related to proper cell function and early development in mammals. The aim of this study was evaluate the presence AQPs determine their mRNA levels cumulus oocyte complex (COC) four bovine breeds blastocysts five crosses. Grade I, II III COCs were collected by ovum pick up from non-lactating heifers Brahaman, Holstein, Gir Romosinuano breeds. Embryos produced vitro blastocyst stage ♀Gir × ♂Holstein, ♀Holstein ♂Gir, ♀Brahman ♂Brahman,...

10.3390/ani13010098 article EN cc-by Animals 2022-12-27

Salmonella enterica is a zoonotic pathogen transmitted to humans by the consumption of contaminated poultry products. causes around 93 million cases gastroenteritis and 155,000 deaths worldwide. A high number multidrug-resistant isolates has been found from different segments production, it often associated with horizontal antibiotic resistance gene transfer through mobile elements such as plasmids, integrons, transposons. The emergence antibiotic-resistant misuse antibiotics in animal...

10.1590/1806-9061-2021-1460 article EN cc-by Brazilian Journal of Poultry Science 2021-01-01
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