在喀麦隆的污水样本中首次检测和描述了肝炎E病毒
Modiyinji Abdou Fatawou1, Monamele Gwladys Chavely1, Moumbeket Yifomnjou Moise Henri1
1Virology Department, Centre Pasteur of Cameroon, Yaoundé, Cameroon.
Food and environmental virology
|August 8, 2023
概括
在喀麦隆的污水中检测到肝炎E病毒 (HEV),表明环境污染. 确定的HEV菌株,基因型3,亚型3a与猪菌株有关,突出了潜在的公共卫生风险.
科学领域:
- 环境微生物学环境微生物学
- 公共卫生病毒学.
- 分子流行病学分子流行病学
背景情况:
- 肝炎E病毒 (HEV) 是一个重要的公共卫生问题,特别是在发展中国家.
- 在低收入和中等收入国家,受污染的水是HEV传播的主要途径.
- 了解HEV环境存在对于疾病预防策略至关重要.
研究的目的:
- 来自喀麦隆的污水样本中调查HEV的存在和遗传特征.
- 为了确定检测到的HEV菌株的基因型和亚型.
- 评估 HEV 在研究区域的潜在环境风险.
主要方法:
- 对157个回顾性污水样本的分子分析 (2018年1月 - 2019年12月).
- 使用实时和嵌套的反转录聚合酶连锁反应 (RT-PCR) 检测.
- 阳性HEV样本的测序和遗传学分析.
主要成果:
- 在来自北方,极北和阿达马瓦地区的1.9% (3/157) 的污水样本中检测到HEV.
- 一个样本产生了用于遗传学分析的序列.
- 确定的HEV菌株属于基因型3,亚型3a,与来自其他国家的猪HEV聚集在一起.
结论:
- 这项研究提供了关于喀麦隆废水中HEV循环的初步证据.
- 这些发现表明,环境HEV和猪种群之间存在潜在的联系.
- 需要进一步的研究,以充分确定喀麦隆的HEV情况.
相关概念视频
01:25Hepatitis
Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
01:28Viral Hepatitis I: Introduction
Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...