狗中的Streptococcus zooepidemicus:通过多部位序列类型化探索犬类病原体.
Elli R Mangano1, Gareth M C Jones2, Alejandro Suarez-Bonnet1
1Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, United Kingdom.
Veterinary microbiology
|March 30, 2024
概括
多部位序列类型 (MLST) 揭示了特定的Streptococcus equi. 亚种类 亚种类 亚种类 动物流行病菌株 (ST-10,123,173) 与严重的狗出血性肺炎有关,特别是在犬舍中. 需要进一步的研究来了解毒性因素.
科学领域:
- 兽医微生物学 兽医微生物学
- 狗的传染病 狗的传染病
- 细菌基因组学是一种细菌基因组学.
背景情况:
- 链球杆菌等同. 亚种类 亚种类 亚种类 动物流行病 (S. zooepidemicus) 在全球范围内引起重大犬病.
- 在庇护所和 kennel 环境中,患病率显著更高.
- 了解菌株多样性对于疾病管理至关重要.
研究的目的:
- 通过使用多位置序列类型 (MLST) 调查狗中S. zooepidemicus的遗传多样性.
- 确定序列类型 (ST) 与疾病严重程度,起源和疫情动态之间的潜在关联.
- 探索S. zooepidemicus菌株与严重的临床表现 (如出血性肺炎) 之间的关系.
主要方法:
- MLST对149个独立的犬种S. zooepidemicus分离物进行了测试.
- 分析了与品种,国家,疾病严重程度,采样类型,年份和疫情行为的关联的数据.
- 在养群体的多次爆发中追踪了特定的菌株.
主要成果:
- 在ST和品种,国家,采样类型或年份之间没有明确的关联.
- 在所有疾病严重程度上都发现了ST-10和ST-123菌株.
- 特定的STs (ST-10,18,123和ST-173) 与出血性肺炎和犬舍中的持久性有关,其中ST-173的毒性高.
结论:
- 单靠MLST无法完全确定S. zooepidemicus在狗中的毒性.
- 某些STs,特别是ST-173克隆复合体中的STs,与严重的疾病和在高风险环境中持久性有关.
- 全基因组测序和毒性因子表征是全面理解的必要条件.
关键词:
狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗在MLST上,我们可以看到MLST.肺炎是一种肺炎.呼吸系统 呼吸系统 呼吸系统这里是避难所.Streptococcus zooepidemicus 这种细菌是动物性流行病.更多相关视频
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