野生物子中的禽疟疾:一个病例报告
Gillian Muchaamba1,2,3, Kannan Venugopal1,2, Bettina Gächter4
1Institute of Parasitology, Vetsuisse and Medical Faculty, University of Zurich, Zurich, Switzerland.
Malaria journal
|October 2, 2024
概括
由Plasmodium relictum血统GRW11引起的鸟类疟疾导致了一只野的致命贫血. 这一案例凸显了家禽感染菌感染的潜在风险以及HSP70抗体检测的实用性.
科学领域:
- 兽医寄生虫学 兽医寄生虫学
- 鸟类病理学 鸟类病理学
- 分子诊断学 分子诊断学
背景情况:
- 鸟类疟疾是由杆菌寄生虫引起的,影响着各种鸟类,但在野生种群中没有充分记录.
- 野生鸟类可以充当水库,在野生迁徙鸟和家禽之间可能传播菌.
- 鸟类疟疾的致病性和宿主易感性仍然不完全理解.
研究的目的:
- 为了调查与物子一起养的野死亡的原因.
- 为了确定导致感染的Plasmodium物种和血统.
- 评估免疫组织化学在禽疟疾病例中的诊断效用.
主要方法:
- 一只死去的野生子的尸检和组织病理学.
- 在单细胞和库弗弗细胞中识别血红素色素.
- 免疫组织化学使用抗Plasmodium falciparum HSP70抗体.
- 通过PCR进行分子诊断,以识别Plasmodium物种和血统.
- 对额外的野生子进行查,以检测它们是否感染了Plasmodium.
主要成果:
- 野生子表现出严重的贫血,心水和炎症透.
- 组织病理学揭示了高的红细胞感染率 (18%) 与虫寄生虫.
- 通过PCR检测证实了Plasmodium relictum的存在,其血统为GRW11.
- 免疫组织化学显示了红细胞和白细胞的积极信号.
- 在22只野生子中没有检测到额外的Plasmodium感染.
结论:
- 这是与Plasmodium relictum血统GRW11.11相关的第一个报告死亡病例.
- 在子中,菌感染很少出现,像免疫抑制这样的宿主因素可能会影响结果.
- 反Plasmodium falciparum HSP70抗体是检测鸟类样本中的Plasmodium抗原的一个有价值的工具.
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