Equine Hospital, Center of Clinical Veterinary Medicine, Ludwig-Maximilians University, 85764 Oberschleißheim, Germany.
Equine Ambulatory Practice Dr. C. Krieg, 85656 Buch am Buchrain, Germany.
Viruses. 2021 Oct 24;13(11):2142. doi: 10.3390/v13112142.
(1) Background: Equine arteritis virus (EAV) infection causes reproductive losses and systemic vasculitis in susceptible . The intact male becomes the virus' reservoir upon EAV infection, as it causes a chronic-persistent infection of the accessory sex glands. Infected semen is the main source of virus transmission. (2) Here, we describe acute EAV infection and spread in a stallion population after introduction of new members to the group. (3) Conclusions: acute clinical signs, acute phase detection of antigen via (PCR) nasal swabs or (EDTA) blood, and seroconversion support the idea of transmission via seminal fluids into the respiratory tract(s) of others. This outbreak highlights EAV's horizontal transmission via the respiratory tract. This route should be considered in a chronic-persistently infected herd, when seronegative animals are added to the group.
（1）背景：马动脉炎病毒（EAV）感染易感马时会导致生殖损失和全身血管炎。在 EAV 感染后，完整的雄性成为病毒的储主，因为它会导致附属生殖腺的慢性持续性感染。受感染的精液是病毒传播的主要来源。（2）在这里，我们描述了新成员加入群体后，种马群体中急性 EAV 感染和传播的情况。（3）结论：急性临床症状、通过（PCR）鼻拭子或（EDTA）血液检测到的急性期抗原，以及血清转换支持通过精液传播到其他动物的呼吸道的观点。此次暴发突出表明 EAV 通过呼吸道进行水平传播。在慢性持续性感染的畜群中，当向群体中添加血清阴性动物时，应考虑这种传播途径。
