Avian reovirus infections
Avian reovirus infections
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DOI：
10.20506/rst.19.2.1237
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发表时间：
2000-08-01
影响因子：
0.6
通讯作者：
Jones, RC
中科院分区：
文献类型：
--
作者：
Jones, RC
禽呼肠孤病毒在家禽群中普遍存在。虽然感染通常是没有疾病的，呼肠孤病毒偶尔可能涉及几种疾病综合征，其中病毒性关节炎/腱鞘炎在鸡是最重要的，特别是在肉鸡品种。虽然呼肠孤病毒已从火鸡和其他几种具有不同条件的鸟类中分离出来，但在相对较少的情况下，该病毒的存在与疾病有决定性的联系。特别是在鸡中，已经分离出具有广谱致病能力的禽类呼肠孤病毒，并且存在几种抗原类型。诊断取决于临床样本中病毒的检测，尽管病毒的存在并不一定证实这是疾病的原因，除非在受影响的关节中检测到呼肠孤病毒。鉴于呼肠孤病毒感染广泛且经常无害，血清学试验通常难以解释。病毒性关节炎/腱鞘炎的主要方法是通过在幼鸟中接种减毒疫苗，然后为育种者接种灭活制剂，旨在通过母源抗体保护雏鸡。许多疫苗是基于在美国分离的S1133菌株，但这些疫苗可能对抗原变体无效。
Avian reoviruses are ubiquitous among poultry flocks. Although infection is usually present without disease, reoviruses may occasionally be involved in several disease syndromes of which viral arthritis/tenosynovitis in chickens is the most important, particularly in broiler breeds. While reoviruses have been isolated from turkeys and several other species of birds with various conditions, the presence of the virus has been conclusively linked with disease in relatively few instances. In chickens in particular, avian reoviruses with a wide spectrum of pathogenic capability have been isolated and several antigenic types exist. Diagnosis is dependent on the detection of the virus in clinical samples, although the presence of the virus does not necessarily confirm that this is the cause of the disease, except where reoviruses are detected in affected joints. Serological tests are usually difficult to interpret in view of widespread and frequently harmless reovirus infection. The principal approach to central of viral arthritis/tenosynovitis is by vaccination using attenuated vaccines in young birds, followed by inactivated preparations for breeders intended to protect chicks by maternal antibodies. Many vaccines are based on the S1133 strain isolated in the United States of America, but these may not be effective against antigenic variants.