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Published on: July 1, 2018
Streptococcus suis infection in Taiwan, 2000-2011.
Hsih-Yeh Tsai1, Chun-Hsing Liao, Chia-Ying Liu
1Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City 220, Taiwan.
Diagnostic Microbiology and Infectious Disease
|June 19, 2012
Summary
Streptococcus suis infections in Taiwan were underestimated, with 8 cases identified between 2000-2011. Misidentification by commercial systems highlights the need for accurate Streptococcus suis diagnostics.
Area of Science:
- Microbiology
- Infectious Diseases
- Genetics
Background:
- Streptococcus suis is an emerging zoonotic pathogen.
- Accurate identification of Streptococcus suis is crucial for effective treatment and surveillance.
- Previous data on S. suis epidemiology in Taiwan is limited.
Purpose of the Study:
- To investigate the prevalence and characteristics of Streptococcus suis infections in Taiwan.
- To evaluate the accuracy of commercial identification systems for S. suis.
- To determine the genetic relatedness of S. suis isolates.
Main Methods:
- Retrospective analysis of patient records from 2000-2011.
- Bacterial isolate identification using commercial systems and 16S rRNA gene sequencing.
- Biotype and serotype determination.
- Genotyping of S. suis isolates.
Main Results:
- Eight cases of Streptococcus suis infection were identified.
- Six isolates were initially misidentified as Streptococcus acidominimus.
- 16S rRNA gene sequencing confirmed all isolates as S. suis.
- All analyzed isolates belonged to biotype II.
- Three serotype I isolates showed identical genotypes, suggesting clonal spread.
- All patients survived.
Conclusions:
- Streptococcus suis infections may be underdiagnosed in Taiwan.
- Commercial identification systems may misidentify S. suis.
- 16S rRNA gene sequencing is a reliable method for S. suis identification.
- The findings suggest potential clonal spread of S. suis in Taiwan.
- Further surveillance is needed to understand the true burden of S. suis infection.
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