最近,我院卫生系流行病学教研组采用差速离心法和37℃反复消化法,在死于蜘网膜下腔出血、肝炎表面抗原阳性患者的肝脏中提取乙型肝炎核心抗原。通过上述两种方法提取到的核心抗原经补结、免疫粘连和酶标记等免疫学方法检测以及直接电镜和免疫电镜检查,均证实核心抗原的存在。目前正准备交临床进一 Recently, epidemiological teaching and research group of our hospital Department of Health epidemiology using differential centrifugation and 37 ℃ repeated digestion, died of sub-subarachnoid hemorrhage, hepatitis B surface antigen-positive patients with liver extract of hepatitis B core antigen. The core antigen extracted by the above two methods is confirmed by the immunological methods such as nodules, immunoadsorption and enzyme labeling as well as direct electron microscopy and immunoelectron microscopy. Currently preparing to enter the clinic into one