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为了更有效地监测和预防甲肝的流行,掌握我市幼儿甲肝的感染情况,我们于1989年4月在全市随机抽取6个托幼园(所)的627名儿童,进行了甲肝感染情况调查。每个儿童采耳血0.1ml,分离血清后,采用唐山市卫生防疫站研制的抗-HAV试剂盒,用ELISA方法测抗-HAV。结果 627名幼儿的抗-HAV总阳性率为10.37％。不同性别的阳性率经卡方检验p>0.05,无显著性差异。本次调查结果表明,年龄越大,感染率越高。经卡方检验,5岁以下组与5岁以上组有显著差异(x~2=6.3284,p<0.05),这与年龄大和外界接触日益增多,感染机会亦随之而增加有关。本次调查5岁以下幼儿甲
In order to monitor and prevent the prevalence of hepatitis A more effectively and learn about the infection of hepatitis A in our city, we conducted a survey on the status of hepatitis A infection in 627 children of 6 care centers in April 1989 in the city. Each child ear mining blood 0.1ml, after separation of sera, using anti-HAV kit developed by Tangshan City Health and Epidemic Prevention Station, ELISA method to measure anti-HAV. Results The total positive rate of anti-HAV in 627 infants was 10.37%. The positive rate of different gender by chi-square test p> 0.05, no significant difference. The survey results show that the older, the higher the infection rate. The chi-square test showed that there was a significant difference (x ~ 2 = 6.3284, p <0.05) between the group under 5 years old and the group over 5 years old, which was related to the increasing age and the increasing exposure to the outside world and the increasing chances of infection. The investigation of children under 5 years old