在欧洲报告不足的新兴动物性病原体Streptococcus suis的分子流行病学
Emerging infectious diseases
|February 26, 2024
概括
猪的动物性细菌Streptococcus suis,导致人类严重感染. 分子流行病学揭示了克隆复合物1占主导地位的人类病例,突出了这一新兴传染病的强制报告的需要.
科学领域:
- 细菌学 细菌学是一门学科.
- 传染性疾病 传染性疾病
- 分子流行病学分子流行病学
背景情况:
- 瑞杆菌 (Streptococcus suis) 是一种从猪传播的动物性病原体,引起人类的重大疾病.
- 报告不足是常见的,因为大多数地区的S. suis感染不需要报告,从而掩盖了真正的发病率.
- 了解分子流行病学对于公共卫生干预至关重要.
研究的目的:
- 在欧洲研究人类Streptococcus suis感染的分子流行病学.
- 识别导致人类疾病的流行细菌菌株和遗传系.
- 提供证据支持将S. suis归类为可通知的条件.
主要方法:
- 系统的文献审查和对参考实验室的调查,以确定人类病例.
- 从人类感染中分离的S. suis的全基因组测序.
- 核心基因组遗传学分析以确定克隆复合体和遗传关系.
主要成果:
- 总共有323例人类S. suis感染被确定 (236例来自文献/实验室,87例来自灰色文献).
- 全基因组测序和遗传学分析显示,克隆复合体1是人类类型感染的主要原因 (87%).
- 其他已确定的克隆复合体包括CC20,CC25,CC87和CC94.
结论:
- 人类Streptococcus suis感染是由各种动物性传染病基因引起的,CC1的流行率很高.
- 疾病的严重程度和遗传多样性强调了S. suis.所带来的公共卫生威胁.
- 建议将其归类为需要报告的疾病,以改善监测和管理.
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