20 0 3年 11月 10～ 2 6日 ,吉安县横江镇南垅小学爆发一起急性发热出疹性疾病。经流行病学调查和实验室血清学证实系一起水痘爆发。南垅小学有学生 2 78人 ,来自附近 5个自然村 ,近几年未发生过水痘流行 ,也未开展水痘疫苗接种。经调查核实 ,累计发病 6 2例 ,罹患率 2 2 30 % On November 10 ~ February 20, 2003, an acute febrile and rash disease broke out in Nanxun Elementary School, Hengjiang Town, Ji’an County. Epidemiological investigation and laboratory serology confirmed a chickenpox outbreak. There are 2 78 students in Nanxun Elementary School from 5 villages in the vicinity. In recent years, no chickenpox epidemic has occurred and no chickenpox vaccination has been conducted. After investigation and verification, the cumulative incidence of 6 2 cases, the attack rate of 2 2 30%