乙型病毒性肝炎(HB)分布广、传播快,发病率高,每年新发生的乙肝病人约2000万,严重威胁着广大人民,特别是儿童的身体健康。了解HB的感染状况以及免疫应答在HB标志的表现模式是推测该病的发生、发展、预后的前提。为此,我们做了这方面的工作。一、检测对象及人数洛阳吉利区15岁以下小儿292名。其中男性162人,女性130人。二、检测方法 HBsAg用RPHA法。试剂盒由卫生部北京生物制品研究所提供。抗—HBs、抗— Hepatitis B virus (HB) is widely distributed, spread rapidly and has a high incidence. About 20 million new cases of hepatitis B occur every year, posing a serious threat to the general health of the general public, especially children. To understand the status of HB infection and immune response in the HB sign of the performance pattern is speculated that the occurrence of the disease, development, prognosis of the premise. To this end, we have done this work. First, the detection of objects and the number of Geely Luoyang 291 children under the age of 15. 162 males and 130 females. Second, test methods HBsAg RPHA method. Kit provided by the Ministry of Health Beijing Institute of Biological Products. Anti-HBs, Anti-