285例风疹调查分析

Analysis of Investigation for 285 Cases of Rubella Mao Changshi11)

１９９３年２～８月间主要在昆明市中、小学及幼儿园等集体单位发生一起发疹性疾病，经调查并经血清学检查证实为风疹．作者对门诊２８５例患者作了临床观察和实验室检查，并进行了流行病学调查．结果发现这次风疹暴发流行为全省大流行的一部份，且无历史记载．经对４所中学的５６５８名学生调查发现，总发病率为８．８７％，有的班级高达５３．５％，具有流行迅速，发病集中，临床症状轻，预后良好的特点．暴发流行原因可能为人群对风疹病毒免疫力低下有关．作者还对流行病学、临床表现的特点进行了初步分析．

rom February to August 1993,a kind of disease, meascles by nature, appeared in thecollective units of middle and primary schools and kindergartens in Kunming. Having madeinvestigation and examination of serology, we testify it is rubella. The author has made clini-cal observation and laboratory examination of 285 cases from outpatients as well asepidemiological investigation. We discover that the sudden attack by rubella in Kunming is apart of the epidemic propagation in the whole province. It has no historical record up to now.After investigation of 5685 students from 4 middle schools, the total incidence is 8.87%, someclasses of the schools have increased to 53.5%. Having distinguished features of quick infec-tion, concentrated incidence, minor symptom and satisfactory recovery, the reason of thesudden epidemic attack seems to be the lowlevel on immunity of people in front of the virus ofrubella. The author may also carry on recent analysis of the result obtained from their recentinvestigation, including distinguishing features of this disease in epidemiology and clinicalmanifestation.