Genetic diversity of Streptococcus suis isolated from pigs and humans in Chiang Mai and Lamphun province, Thailand

Wongsawan, Kanruethai; Takenami, Naoki; Pruksakorn, Sumalee; Fongcom, Achara; Gottschalk, Marcelo; Supjatura, V; Takaı̈, Shinji; Tharavichitkul, Prasit

doi:10.1016/j.ics.2005.09.113

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“…Our team, Wongsawan et al [ 19 ] had analyzed the genetic diversity of S. suis isolated from humans by both PFGE and mrp/epf/sly genotypes; however, they have not been compared one each other. In the present study, we wanted to address the correlation between different groups and genotypes of S. suis serotype 2 for future epidemiological studies.…”

Section: Discussionmentioning

confidence: 99%

Correlation between PFGE Groups andmrp/epf/slyGenotypes of HumanStreptococcus suisSerotype 2 in Northern Thailand

Tharavichitkul

Wongsawan

Takenami

et al. 2014

Journal of Pathogens

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Streptococcus suis infection is a severe zoonotic disease commonly found in Northern Thailand where people often consume raw pork and/or pig's blood. The most frequent clinical presentations are meningitis, sepsis, and endocarditis with higher rate of mortality and hearing loss sequelae. To clarify the correlation between pulsed-field gel electrophoresis (PFGE) groups and mrp/epf/sly genotypes of S. suis serotype 2, 62 patient and 4 healthy pig isolates from Northern Thailand were studied. By PFGE analysis, at 66% homology, most human isolates (69.4%) and 1 pig isolate were in group A, whereas 14.5% of human isolates and 3 out of 4 pig isolates were in group D. According to mrp/epf/sly genotypes, 80.6% of human isolates were identified in mrp + epf − sly − and only 12.9% were in mrp − epf − sly + genotypes; in contrast, 1 and 3 pig isolates were detected in these two genotypes, respectively. Interestingly, all isolates of S. suis serotype 2 classified in PFGE groups A, B, and E were set in mrp + epf − sly − genotypes. These data show a close correlation between PFGE groups and mrp/epf/sly genotypes of human S. suis serotype 2.

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Section: Discussionmentioning

confidence: 99%