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目的了解湖南省健康人群乙肝抗体水平及新生儿乙肝疫苗全程合格接种后的免疫效果,为制定湖南省乙肝免疫策略提供科学依据。方法随机选择长沙市、衡阳市68名新生儿、455名健康人群,采用放射免疫法检测乙肝病毒表面抗体(抗-HBs)。结果在68名新生儿全程接种乙肝疫苗后,抗-HBs阳性率达85.29%;健康人群抗-HBs阳性率平均为72.06%,各年龄组间抗-HBs阳性率的差异有统计学意义;在有免疫接种史的人群中,各年龄组抗体均值的差异有统计学意义。结论在15岁以下人群中抗-HBs阳性率有随着年龄的增加其抗体含量下降的趋势;新生儿乙肝疫苗免疫成功率有待进一步提高。
Objective To understand the effect of hepatitis B antibody (HBsAg) in healthy population of Hunan province and the immunization effect of newborns with hepatitis B vaccine during the whole period of vaccination, so as to provide a scientific basis for formulating hepatitis B immunization strategy in Hunan Province. Methods A total of 68 newborns and 455 healthy subjects from Changsha and Hengyang were randomly selected to detect hepatitis B virus surface antigens (anti-HBs) by radioimmunoassay. Results The positive rate of anti-HBs was 85.29% after 68 newborns were vaccinated with hepatitis B virus. The average positive rate of anti-HBs in healthy population was 72.06%. The positive rate of anti-HBs in all age groups was statistically significant. In the population with history of immunization, there was significant difference in antibody mean value among all age groups. Conclusions The positive rate of anti-HBs in the population below 15 years old tends to decrease with the increase of the age. The successful rate of hepatitis B vaccine in neonates needs to be further improved.