text: 4.异型麻疹见于接受过灭活麻疹疫苗或个别减毒活疫苗者，因缺乏F蛋白抗体，再感染麻疹野毒株后发生此型表现：前驱期短，无柯氏斑；出疹期发热和全身症状较重；出疹顺序为先四肢，后向躯干和面部发展；皮疹为多形性，有斑丘疹、荨麻疹、水疱和紫癜等；常伴腹痛和肌痛；易并发肺炎、肝炎和胸腔积液等。
entities.entity: 异型麻疹
entities.label: dis
entities.entity: 灭活麻疹疫苗
entities.label: dru
entities.entity: 减毒活疫苗
entities.label: dru
entities.entity: F蛋白抗体
entities.label: bod
entities.entity: 感染
entities.label: sym
entities.entity: 前驱期短
entities.label: sym
entities.entity: 无柯氏斑
entities.label: sym
entities.entity: 出疹期发热和全身症状较重
entities.label: sym
entities.entity: 出疹顺序为先四肢，后向躯干和面部发展
entities.label: sym
entities.entity: 皮疹为多形性，有斑丘疹、荨麻疹、水疱和紫癜
entities.label: sym
entities.entity: 腹痛
entities.label: sym
entities.entity: 肌痛
entities.label: sym
entities.entity: 肺炎
entities.label: dis
entities.entity: 肝炎
entities.label: dis
entities.entity: 胸腔积液
entities.label: dis