巴加扎病毒在西班牙南部野生鸟类中重新出现
Moisés Gonzálvez1, David Cano-Terriza2, Úrsula Höfle3
1Departamento de Sanidad Animal, Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, 14014 Córdoba , Spain; Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain.
Veterinary microbiology
|October 23, 2024
概括
在2021年夏天,西班牙猎禽中发生了巴加扎病毒 (BAGV) 爆发,导致严重的发病率和死亡率. 这种新兴的黄病毒也在新的野生鸟类中被检测到,扩大了其已知的宿主范围.
科学领域:
- 兽医病毒学 兽医病毒学
- 野生动物疾病生态学 野生动物疾病生态学
- 新兴的传染病 新兴的传染病
背景情况:
- 巴加扎病毒 (BAGV) 是一种新兴的载体传播的黄状病毒,影响着鸟类的健康.
- BAGV带来了潜在的动物传染病风险,需要监控.
- 之前在西班牙的BAGV疫情是在2010年和2019年记录的.
研究的目的:
- 为了监测西班牙各地野生鸟类中BAGV的2021年流行病爆发.
- 为了确定 BAGV.的宿主范围,季节性和临床影响.
- 分析循环的BAGV菌株的遗传相关性.
主要方法:
- 在24个狩猎地区进行实地监测,确认了BAGV病例,11个疑似病例.
- 被动监控215只被送往康复中心的非游戏鸟类.
- 从受影响的鸟类中检测和测序BAGV的分子检测.
- 对狩猎鸟类进行细胞病理学检查,检查BAGV相关的病变.
主要成果:
- 2021年7月至8月,主要发生在猎禽 (和) 中的BAGV疫情.
- 估计的发病率和死亡率在受影响的猎禽中是显著的.
- BAGV首次在四种新的野生鸟类中检测到,扩大了其宿主范围.
- 猎禽表现出明显的病变,包括心肌炎和脑炎.
- 测序揭示了与之前的西班牙BAGV分离物具有很高的同源性 (97.4-98.0%),这表明了特有循环.
结论:
- 2021年BAGV爆发突显了其重新出现和对西班牙野生鸟类种群的重大影响.
- 扩大的宿主范围表明BAGV的适应能力和更广泛生态传播的潜力.
- 调查结果表明,自2010年以来,西班牙的BAGV可能在西班牙静默和流行.
- 加强监测对于早期检测和管理高风险地区的病毒动态至关重要.
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