研究笔记:有间接证据表明,意大利的 brojlers 中有禽类甲型肺炎病毒的传播
Claudia M Tucciarone1, Matteo Legnardi1, Mattia Cecchinato2
1Department of Animal Medicine, Production and Health (MAPS), University of Padua, Legnaro 35020, Padua, Italy.
Poultry science
|August 18, 2024
概括
禽类甲型肺炎病毒 (aMPV) 在意大利肉养殖场普遍存在,无论季节如何,血清流行率很高. 由于不同临床结果和缺乏疫苗接种,监测病毒循环至关重要.
科学领域:
- 兽医病毒学 兽医病毒学
- 禽类的健康 禽类的健康
- 流行病学 流行病学
背景情况:
- 禽类甲型肺炎病毒 (aMPV) 对家禽部门构成越来越大的威胁,特别是在缺乏疫苗接种计划的意大利肉养殖场.
- 这些鸟类的天真地位需要了解aMPV的循环模式.
研究的目的:
- 评估北意大利 brojler养殖场中禽类甲型肺炎病毒 (aMPV) 的传播情况.
- 调查对aMPV流行率和抗体标位的潜在季节性影响.
主要方法:
- 在意大利北部的七个农场进行了血清学调查,采样是在夏季/秋季,并在冬季/春季重复采样.
- 用ELISA检测aMPV抗体,分析了每个农场15只鸟类的血液样本.
- 记录了临床症状,并评估了血清流行率和抗体标位.
主要成果:
- 在两次采样期间,所有农场的aMPV抗体检测均为阳性,除了第一次采样期间的一家农场.
- 农场内的血清流行率从26.6%到100%不等,抗体标位随着鸟类的年龄增加而增加.
- 没有观察到显著的季节性影响,但注意到对aMPV流通有明显的农场影响.
结论:
- 禽类甲肺病毒 (aMPV) 在意大利北部的肉养殖场广泛传播,呈现出各种各样的临床结果,可能受养殖场特定因素的影响.
- 在未接种疫苗的群体中,血清学监测是跟踪病毒进入的宝贵工具,尽管最佳采样时间是检测晚期感染的关键.
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