摘要
为探讨山区农村甲肝流行特点，对１９９７年发生在河北省某山区农村的甲肝暴发进行了流行病学调查和血清学分析。该村１５年内未发生过甲肝流行，暴发前３个月曾发生２例甲肝，暴发前曾大量降雨，并造成饮用水井淹没。此次暴发始于７月２１日，８月发病达高峰；９月２３日结束，历时６４天，共发生甲肝２３例，１—１４岁儿童发病率１９．３３％（２３／１１９）。经血清学分析，此次暴发新感染者中临床型甲肝占６０．５３％，暴发后１～１４岁儿童遗留易感率为５．７１％。易感者的积累和饮用水污染可能是此次暴发的原因，建议在山区农村改善饮水条件和开展甲肝疫苗预防接种。
An outbreak of Hepatitis A (HA) occurred in a mountain village of Hebeiprovince in autumn of 1997. It began on July 21, got to peak prevalence in August, ended onSeptember 23, and lasted for 64 days. Twenty-three HA cases were found in the outbreak,which was 19.33 % of the age group 1 to 14 years old. The accumulation of susceptible and contamination of drinding water might be the main causes of the outbreak. To prevent this kind ofHA outbreak, improvement of drinking water system and regular use of HA vaccine might be twoeffective measures.
出处
《疾病监测》
CAS
1999年第4期127-130,共4页
Disease Surveillance
