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近十年来广西饲养蓖麻蚕,流行血型脓病,已查明是由蓖麻蚕核型多角体病毒侵染所致。目前尚无有效治疗方法。 本病毒棒状,大小为160—280×30一40毫微米。病原通过蚕的肠胃及血液侵染,存在于向细胞、脂肪细胞、生殖腺膜细胞和皮肤上、气管大核细胞层。先在细胞核内繁殖,以后形成多角体(包含体)。病毒在多角体内,全都具有发育膜。其分布方问、间隔和数目,都没有规则。在病蚕的血清内,有不具发育膜的游离病
Over the past decade, Guangxi feeding castor silkworm, endemic blood type of pus, has been identified by the castor bean nuclear polyhedrosis virus infection. There is currently no effective treatment. The virus stick, the size of 160-280 × 30 a 40 nm. Pathogen through the silkworm gastrointestinal and blood infections, exists in the cells, fat cells, gonadal cells and skin, tracheal tubule layer. First in the nucleus multiply, after forming polyhedron (including body). Viruses in the polyhedron all have a developmental membrane. There are no rules for its distribution, spacing, and number. In the serum of the diseased silkworm, there is a diseased membrane that does not have a developmental membrane