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Open AccessArticle

Genotypic Comparison between Streptococcus suis Isolated from Pigs and Humans in Thailand

1
Faculty of Public Health, Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon 47000, Thailand
2
Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
3
Phayao Provincial Livestock Office, Phayao 56000, Thailand
4
Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
5
Faculty of Veterinary Medicine, University of Montreal, Montreal, QC H3T 1J4, Canada
6
Toyama Institute of Health, Toyama 939-0363, Japan
*
Author to whom correspondence should be addressed.
Pathogens 2020, 9(1), 50; https://doi.org/10.3390/pathogens9010050
Received: 30 November 2019 / Revised: 26 December 2019 / Accepted: 5 January 2020 / Published: 9 January 2020
Streptococcus suis is a zoonotic pathogen of economic significance to the swine industry. The number of infected cases is increasing in humans worldwide. In this study, we determined the prevalence and diversity of S. suis carriage in slaughterhouse pigs in Phayao province, Thailand, where an outbreak occurred in 2007. The overall S. suis carriage rate was 35.2% among slaughterhouse pigs. The prevalence rates of serotypes 2 and 14 (the major serotypes infected in humans) were 6.7% and 2.6%, respectively. In both serotypes, 70.4% of isolates of serotypes 2 and 14 revealed sequence types and pulsotypes identical to human isolates in Thailand. It is suggested that pathogenic strains of S. suis are a risk factor for occupational exposure to pigs or the consumption of raw pork products. Food safety, hygiene, and health education should be encouraged to reduce the risk group. View Full-Text
Keywords: serotype; genotype; Streptococcus suis; sequence type (ST); multilocus sequence typing (MLST); pulse-field gel electrophoresis (PFGE) serotype; genotype; Streptococcus suis; sequence type (ST); multilocus sequence typing (MLST); pulse-field gel electrophoresis (PFGE)
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Kerdsin, A.; Takeuchi, D.; Nuangmek, A.; Akeda, Y.; Gottschalk, M.; Oishi, K. Genotypic Comparison between Streptococcus suis Isolated from Pigs and Humans in Thailand. Pathogens 2020, 9, 50.

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