我们自1980年冬～1984年春对我市部分医院可能存在的在的污染途径进行了调查,报告如下。一、HBsAg 污染和携带情况1.用RPHA 法抽检医院门诊注射室使用的针筒277付HBsAg 阳性26份(9.4%),将阳性标本的残留液,经超速离心后用免疫电镜观察发现有直径为20毫微米球型和管型的乙型肝炎病毒颗粒。 We conducted a survey on possible pollution routes in some hospitals in our city from the winter of 1980 to the spring of 1984 and are reported as follows. First, the HBsAg contamination and carry 1. RPHA sampling with the hospital outpatient injection chamber syringe 277 paid HBsAg-positive 26 (9.4%), the positive samples of the residual solution after ultracentrifugation by immunoelectron microscopy was found to have a diameter 20-nm spherical and tube-shaped hepatitis B virus particles.