一个新的Echinococcus ortleppi感染病例被通过下一代测序在中国诊断出来
Xishuai Jia1, Junhua Tian1, Ming Huang2
1Wuhan Center for Disease Control and Prevention, Wuhan, Hubei, China.
Frontiers in cellular and infection microbiology
|February 9, 2026
概括
在中国使用下一代测序,发现了一种罕见的人类感染 Echinococcus ortleppi. 这一发现突显了这种寄生动物性 zoonosis 在非特有地区潜在的未被识别的传播途径.
科学领域:
- 动物传播疾病 动物传播疾病
- 寄生虫学的寄生虫学
- 分子流行病学分子流行病学
背景情况:
- 囊性球菌病 (CE) 是一种具有显著的寄生动物性 zoonosis,具有相当大的人类发病率和死亡率.
- 在人类中,由 Echinococcus ortleppi 引起的感染非常罕见.
- 中国通常被认为是E. ortleppi. 的非流行地区.
研究的目的:
- 为了确定中国武汉的一例CE病例的致病因子.
- 鉴定E. ortleppi菌株的遗传构成的特征.
- 调查这种罕见的人类感染在非流行地区的影响.
主要方法:
- 在人类患者中诊断 cystic echinococcosis.
- 下一代测序 (NGS) 用于病原体识别.
- 整个线粒体基因组测序和比较分析.
主要成果:
- 中国武汉的一名27岁男性被诊断出患有CE.
- 美国国家基因学会证实病原体是Echinococcus ortleppi.
- 完整的线粒体序列显示了99.92%的同一性与来自日本牛的E. ortleppi菌株.
- 这是中国第三个报告的E. ortleppi人类病例.
结论:
- 该研究确定了E.ortleppi是中国非流行地区罕见CE病例的原因.
- 与日本牛品种的遗传相似性表明潜在的跨境传播或共享的,尚未识别的储库.
- 在中国可能存在未知的E. ortleppi传播途径,需要进一步的流行病学调查以确定和减轻风险.
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