From 2000 to 2011, 8 patients with Streptococcus suis infections were identified in Taiwan. Six isolates were initially misidentified as Streptococcus acidominimus using commercial identification systems and later confirmed to be S. suis using 16S rRNA gene sequencing analysis. Among the 7 isolates available for further analysis, all belonged to biotype II. Three serotype I isolates possessed the same genotypes, indicating the possible clonal spread of S. suis. All of these patients survived. S. suis infection is underestimated in Taiwan.
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