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用瑞比克 C3 对非洲野狗进行犬瘟热和细小病毒联合疫苗接种()。

CANINE DISTEMPER AND PARVOVIRUS VACCINATION WITH RECOMBITEK C3 IN AFRICAN WILD DOGS ().

机构信息

University of Tennessee College of Veterinary Medicine, Knoxville, TN 37996, USA.

University of Tennessee College of Veterinary Medicine, Knoxville, TN 37996, USA,

出版信息

J Zoo Wildl Med. 2021 Dec;52(4):1229-1233. doi: 10.1638/2021-0004.

Abstract

Infectious disease threats are increasingly recognized as a major contributor to mortality in wild populations of African wild dog ( AWD). Canine distemper virus (CDV) infection has been implicated as a cause of pack mortality in both captive and wild AWD populations. Ten animals were vaccinated with Recombitek C3, a vaccine containing a recombinant CDV, and modified live canine parvovirus (CPV) and adenovirus-2 components, at 8, 12, and 16 wk of age. Half of the pups received the vaccine IM and the other half SC. All ten pups had a positive serological response to CDV after the second vaccination, which decreased or stagnated after the third vaccination. Half of the pups had CDV titers ≥32 at 20 wk of age. Titers to CPV were high in all pups prior to vaccination and dropped precipitously over the course of the vaccine series. At the last sampling period, only 50% of the pups had measurable CPV titers. An initially higher titer was seen for CDV in the IM administration group; however, this was not significant at later time points. Vaccination with Recombitek C3 appears to be safe and effected a sustained serological response to CDV in AWD.

摘要

传染病威胁日益被认为是导致非洲野犬(AWD)野生种群死亡率上升的主要因素之一。犬瘟热病毒(CDV)感染已被认为是导致圈养和野生 AWD 种群死亡的原因之一。十只动物在 8、12 和 16 周龄时接种了 Recombitek C3,这是一种含有重组 CDV 以及改良的活犬细小病毒(CPV)和腺病毒-2 成分的疫苗。一半的幼犬通过肌肉注射(IM)和另一半通过皮下注射(SC)接受疫苗。在第二次接种后,所有十只幼犬都对 CDV 产生了阳性血清反应,第三次接种后反应下降或停滞。一半的幼犬在 20 周龄时的 CDV 滴度≥32。所有幼犬在接种疫苗前的 CPV 滴度都很高,在疫苗系列过程中急剧下降。在最后一次采样期间,只有 50%的幼犬可测量到 CPV 滴度。在肌肉注射组中,CDV 的初始滴度较高;然而,在以后的时间点,这并没有统计学意义。Recombitek C3 疫苗接种似乎是安全的,并在 AWD 中产生了对 CDV 的持续血清反应。

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