最近有一个地方卫生部门向作者询问,关于乙型肝炎的危险性和当前应用同一副注射器但换针头进行大规模卡介苗预防接种的问题。作者认为,这种方法不仅传播乙型肝炎的危险性很大,而且对传播第3型肝炎,即非甲非乙肝炎的危险性亦可能相同。这种方式传播病毒性肝炎的证据是无可置疑的。30余年前一所糖尿病诊所的病人中的肝炎,追踪发现与抽血作血糖检查所共用的注射器有关。两年期间共发生63例肝炎,4例死亡;据估计感染系由于血液污染注射器嘴子所引起的。后来证明,在注射完毕从注射器上取下针头时,针头腔里的血液或组织液可以被 A local health department recently asked the authors about the dangers of hepatitis B and the current problem of using the same syringe but having needle swabs for large-scale BCG vaccination. According to the authors, this method not only poses a high risk of transmitting Hepatitis B but may be equally at risk for the transmission of Hepatitis Type 3, ie, non-A, non-B hepatitis. Evidence of the spread of viral hepatitis in this way is beyond doubt. Hepatitis in patients at a diabetes clinic more than 30 years ago was found to be related to syringes shared by blood donors for blood glucose tests. Sixty-three cases of hepatitis occurred during the two-year period and four died; it was estimated that the infection was caused by blood contamination of the syringe mouth. It was later shown that when the needle was removed from the syringe upon injection, the blood or tissue fluid in the needle cavity could be