答:水痘是由毒感染的急性出疹性传染病,本病多发生于春冬二季,在1～6岁小儿中传播最多,近年来,也有少数成人感染发病。本病的临床特征是:(1)水痘乍见时为红色斑点(点为小丘疹),呈向心性分布,皮疹躯干多,四肢少。数小时内发展为疱疹,椭圆形,瘙痒,4～5天后,疱疹干燥结痂,脱痂后,皮肤不留麻点,较易与其他皮疹鉴别。(2)出疹期水痘分批出现,大小不一,皮肤表面可有丘疹、疱疹、结痂三个次第的水痘混合并见,不似天花、麻疹的出疹相对整齐划一。 A: Chickenpox is an acute rash infectious disease caused by a poison infection. The disease mostly occurs in the spring and winter seasons. It spreads most frequently in children aged 1 to 6 years old. In recent years, a small number of adult infections have also been reported. The clinical features of this disease are: (1) The varicose locust at first glance is red spots (point for papules), was concentric distribution, skin rash and more, less limbs. Within hours, herpes, oval and itch are developed. After 4 to 5 days, the herpes are dry and scabbed. After the scab is removed, the skin does not leave pockmarks and is easily distinguished from other rashes. (2) In the period of rash, the chickenpox appears in batches in different sizes. The skin surface may contain papules, herpes and scabs. The chickenpox is mixed and seen for three times, which is similar to the smallpox. The measles rash is relatively uniform.