Characterization of Virulence Factors and Antimicrobial Susceptibility of Associated with Bovine Mastitis Cases in Thailand.

is a contagious pathogen that causes bovine mastitis. The ability of to cause widespread mastitis relies on bacterial virulence factors. In this study, we detected 10 virulence determinants associated with mastitis pathogenicity using conventional PCR.

Genotypic and antimicrobial susceptibility of causing bovine mastitis in the central region of Thailand.

Introduction: is a highly contagious pathogen that causes bovine mastitis, leading to significant economic losses. This study aimed to (1) identify and characterize strains responsible for bovine mastitis by examining their phenotypic and genotypic characteristics in Thai dairy-intensive farming areas and (2) determine their susceptibility profiles to antimicrobial agents.

Material And Methods: In total, 100 isolates obtained from clinical and subclinical mastitis cases from 13 dairy herds located in the central region of Thailand were examined.

Relationship between Penicillin-Binding Proteins Alterations and β-Lactams Non-Susceptibility of Diseased Pig-Isolated .

is a zoonotic pathogen causing disease in both animals and humans, and the emergence of increasingly resistant bacteria to antimicrobial agents has become a significant challenge globally. The objective of this study was to investigate the genetic basis for declining susceptibility to penicillin and other β-lactams among . Antimicrobial susceptibility testing and penicillin-binding proteins (PBP1a, PBP2a, PBP2b, and PBP2x) sequence analysis were performed on 225 isolated from diseased pigs.

Antimicrobial Susceptibility of Isolated from Diseased Pigs in Thailand, 2018-2020.

is a porcine and zoonotic pathogen that causes severe systemic infection in humans and pigs. The treatment of infection relies on antibiotics; however, antimicrobial resistance (AMR) is an urgent global problem, pushing research attention on the surveillance of antibiotic-resistant to the fore. This study investigated the antimicrobial susceptibility of 246 strains isolated from diseased pigs in Thailand from 2018-2020.

Plasmid-mediated colistin resistance and ESBL production in Escherichia coli from clinically healthy and sick pigs.

This study aimed to determine the percentage of colistin resistant and ESBL-producing Escherichia coli from clinically sick and healthy pigs and understand the molecular mechanisms underlying colistin resistance and ESBL production. A total of 454 E. coli isolates from healthy pigs (n = 354; piglets, n = 83; fattening pigs, n = 142 and sows, n = 100) and sick pigs (n = 100) were examined for antimicrobial susceptibility, chromosomal and plasmid-mediated colistin resistance mechanisms and ESBL genes.

Novel DNA Markers for Identification of Actinobacillus pleuropneumoniae.

Actinobacillus pleuropneumoniae causes porcine pleuropneumonia, an important disease in the pig industry. Accurate and sensitive diagnostics such as DNA-based diagnostics are essential for preventing or responding to an outbreak. The specificity of DNA-based diagnostics depends on species-specific markers.

Antimicrobial resistance and virulence genes in Salmonella enterica isolates from dairy cows.

One hundred sixty Salmonella enterica isolates from clinically healthy dairy cows were assayed for antibiotic susceptibilities, the presence of class 1 integrons, antimicrobial resistance genes and virulence genes, and conjugal transfer of antimicrobial resistance determinants. One hundred nine (68%) of the Salmonella isolates were resistant to at least 1 antibiotic, and 14 isolates (9%) were multiresistant. The most prevalent resistance observed was to streptomycin (64%).