猪圆环病毒的致病机理

猪圆环病毒(PCV2)是近年来发现的一种新病毒。该病毒主要侵害哺乳仔猪和育肥猪。主要引起猪断奶后多系统衰竭综合症(PMWS)、猪皮炎肾炎综合症(PDNS)、增生性坏死性肺炎(PNP)、猪呼吸道病综合症(PRDC)、繁殖障碍、先天性颤抖、肠炎等疾病。严重影响猪生长发育,且致死率较高,此病可引起典型的临床症状和病理变化。其典型的临床症状为患猪体质不良、皮肤苍白或有黄疸、消瘦、死亡等,病理特征主要为全身器官的炎性变化。该病自1991年开始报道以来,已成为严重影响养猪业发展的传染病之一,引起了世界许多国家兽医工作者的高度重视。

Pathogenesis mechanism of Porcine circovirus

(PCV2) is a new virus which the recent years discovered. The virus main violation nursing newborn pig and nurtures the fat pig and mainly causes the pig to be posted multi-system weak syndrome (PMWS), pig dermatitis nephritis syndrome (PDNS), proliferative necrotic pneumonia (PNP), pig respiratory syndrome (PRDC), the reproduction barrier, congenitalness shivers, enteritis and so on. It serious influence pig growth, and the lethality is high, this may cause the model clinical symptom and the pathological change. Its model clinical symptom creates disaster the pig physique not good, the skin pale or has the jaundice, becomes emaciated, the death and so on, the pathology characteristic mainly for the whole body organ inflammatory change. This disease has started the report since 1991, has become one of serious influence pig-breeding industry development infectious diseases, and causes world many countries veterinarian to take highly.