人们患癌症是不是由病毒引起的?对于这个问题的研究, 近来好似雨后春笋广泛迅速地开展起来。早在七十年代后期,医学界曾发现日本西南地区白血病的发病率高得惊人。这种异常现象令人怀疑其中有什么传染媒介在活动。但当时美国国家癌症研究所的专家们尽管已经收集了为数可观的有关 Are people suffering from cancer caused by the virus? The study of this issue, recently seems to have spring up rapidly and rapidly. As early as the late seventies, the medical profession has found that the incidence of leukemia in the southwestern region of Japan is alarmingly high. This anomaly cast doubt on which of these vectors are active. But then the National Cancer Institute experts have collected a considerable number of