关于Streptococcus dysgalactiae Subsp.食物传播疫情的第一份报告. 在中国,equisimilis是相似的
Junhong Li1, Bowen Tu1, Xujian Mao1
1Changzhou Center for Disease Control and Prevention, Jiangsu, 213000, China.
Journal of health, population, and nutrition
|June 15, 2025
概括
一个由食物传播的Streptococcus dysgalactiae亚种的爆发. 在中国,SDSE引起了急性桃体炎. 爆发株ST98-stG480.0与受污染的炸肉和食堂工作人员有关.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 公共卫生 公共卫生
背景情况:
- 链球杆菌dysgalactiae亚种. 埃克西西米利斯 (SDSE) 是一种因其毒性因子而闻名的格拉姆阳性细菌.
- SDSE感染可以以各种方式表现,需要进行彻底的调查.
研究的目的:
- 在中国长州,确定食物传播的急性桃体炎疫情的致病原体.
- 描述所涉及的SDSE的特定菌株并确定其来源.
主要方法:
- 在疫情爆发期间进行了流行病学调查和实验室调查,涉及155名患者.
- 多部位序列类型化 (MLST) 和 emm类型化用于分析孤立的SDSE菌株.
主要成果:
- SDSE被确定为病原体,从81.4%的患者,食堂工作人员和食品样本 (炸肉) 中分离出来.
- 所有隔离物被证实为ST98-stG480.0,表明通过感染的食堂工作人员的食物污染.
- 疫情涉及急性炎/喉炎,平均发病时间为45.8小时.
结论:
- 这是自2003年以来,州首次报告食品传播的SDSE疫情.
- ST98-stG480.0菌株与呼吸道感染有关,而不是胃肠道症状.
- 加强对这种SDSE菌株的特征和公共卫生影响的监测和调查至关重要.
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