急性白血病是严重危害人们身体健康的恶性疾病。其死亡率很高,据一九六四年日本全国性调查,五年以上生存者仅为3例。于一九六六年进行全国性调查五年以上生存者7例。一九七一年八月间调查五年以上生存者40例,经追综观察到一九七二年五月增至50例,但以儿童急性淋巴性白血病为多见。一九六四年曾有学者收集世界各地急性白血病生存五年以上 Acute leukemia is a malignant disease that seriously endangers people’s health. The mortality rate is very high. According to the national survey of Japan in 1964, only three survivors survived more than five years. In 1966, there were 7 cases of national survivors surveyed over five years. In August 1971, 40 cases of survivors surveyed for more than five years were observed and increased to 50 cases in May 1972. However, children with acute lymphoblastic leukemia are more common. In 1964, some scholars had collected acute leukemia in the world for more than five years.