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HBsAg是乙型肝炎病毒(HBV)感染的重要标志。阳性者表明过去或目前已感染了HBV。HBsAg慢性携带者主要是指过去没有发现过肝病,目前没有肝炎的临床表现,肝功能检查正常,只是单项HBsAg阳性,并经过半年时间观察没有变化,HBsAg仍未转阴性者。HBsAg慢性携带者是HBV感染的一种重要形式。我国是乙型肝炎的高发地区,根据前几年普查资料表明(RPHA法),全国平均乙肝带毒率为9%,全国约1亿人口有HBV感染,占世界HBV感染之半。广东省也是乙肝高发地区,乙肝带毒率高达15%。该病较多侵犯儿童,广州调查4岁年龄组乙肝带毒率达28%。由此可见,HBV感染在我国发生率
HBsAg is an important marker of hepatitis B virus (HBV) infection. Positives indicate that the past or present has been infected with HBV. Chronic HBsAg carriers mainly refers to the past did not find liver disease, there is no clinical manifestations of hepatitis, liver function tests were normal, only a single HBsAg positive, and after six months of no change in observation, HBsAg is still not negative. Chronic HBsAg carriers are an important form of HBV infection. China is a high incidence of hepatitis B. According to the census data (RPHA Law) in previous years, the average rate of hepatitis B virus infection in the country is 9%. About 100 million people in the country have HBV infection, accounting for half of the world’s HBV infection. Guangdong Province is also a high incidence of hepatitis B, hepatitis B virus up to 15%. The disease is more violations of children, Guangzhou 4-year-old investigation of HBV infection rate of 28%. Thus, the incidence of HBV infection in our country