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已经确证,许多动物癌症是由致瘤病毒(Oncogenic virus)或其核酸传染的。寻找人癌的起因已有较长历史。为了支持人类肿瘤病毒病因的假设,曾进行过下列基本实验。——癌症发病的流行病学调查。——从癌症患者及其肿瘤试行分离病毒颗粒。——试图证明瘤细胞中存在病毒核酸。
It has been confirmed that many animal cancers are infected by Oncogenic virus or its nucleic acid. Finding the cause of human cancer has a long history. In order to support the hypothesis of the cause of human oncoviruses, the following basic experiments have been conducted. - Epidemiological investigation of cancer incidence. - Trial separation of viral particles from cancer patients and their cancers. - Trying to prove the presence of viral nucleic acids in tumor cells.