Publications by authors named "MyeongJu Chae"
represents one of the leading causes of bacterial gastroenteritis in humans and is primarily linked to chicken meat contamination. In the present study, we analyzed the virulence and survival genes, antimicrobial resistance, and the clonal distribution of 50 isolates obtained from various sources in 14 chicken slaughterhouses across 8 provinces in South Korea from 2019 to 2022. Furthermore, we determined their genetic relatedness to human-derived isolates registered in PubMLST using multilocus sequence typing (MLST).
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- - Listeria monocytogenes is a harmful bacteria causing listeriosis, particularly found on chicken meat, which can easily become contaminated during butchery.
- - This study investigated contamination sources and routes at an abattoir that tested positive for Listeria over three years (2019-2021), using both culture-dependent and culture-independent methods for thorough analysis.
- - Findings showed that contamination predominantly occurred in the clean zone of the slaughterhouse, with significant links to chilling water and shackles, and culture-independent methods like qPCR provided better insight into contamination points than traditional methods.
A safe and effective method for eradicating poultry red mite (PRM; ) is urgently needed, as existing treatments show a low efficacy or hazardous effects on chickens. We evaluated the efficacy of a combined treatment with ivermectin and allicin (IA) against PRMs in chickens and drug residues in non-target samples. The efficiency of PRM eradication by IA was compared with those of natural acaricides in vitro.
View Article and Find Full Text PDFsubspecies (SDSE) is an emerging pathogen in animals and humans. Herein, we describe two clinical swine cases of SDSE infection presenting with lameness, neurological signs, or sudden death. Pathological examination indicated suppurative arthritis, encephalitis, and multifocal abscesses in kidney and heart.
View Article and Find Full Text PDFThis study investigated the prevalence of Salmonella enterica serovar and antimicrobial resistance in Salmonella Typhimurium isolates from clinically diseased pigs collected from 2008 to 2014 in Korea. Isolates were also characterized according to the presence of antimicrobial resistance genes and pulsed-field gel electrophoresis patterns. Among 94 Salmonella isolates, 81 (86.
View Article and Find Full Text PDFWe assessed the prevalence and performed molecular analysis of Cryptosporidium spp. in diarrheal feces of calves in Korea. Diarrheal fecal samples were collected from 951 young calves (<3months) on 425 farms.
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