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自从在纽约州北部3所高等学校同班同学中连续发现淋巴网细胞瘤以来,先后有人对淋巴网细胞瘤进行了流行病学调查。发现患者之间的关系是通过直接或简单中间接触,为淋巴网细胞瘤是从患者到患者传播提供了流行病学证据。次发病例首次接触索引病例(Index case)至疾病诊断间隔时间提示平均有3.8年(范围0～12年,中数3年)的较长潜伏期。本文报告2组淋巴网细胞瘤病例的流行病学调查,首次接触索引病例至症状出现相隔2～
Epidemiological investigation of lymphoblastoma has been carried out since the continuous detection of lymphoblastoma in three classmates of higher education institutions in the northern part of New York State. The relationship between patients was found to provide epidemiological evidence that lymphoblastoma is transmitted from patient to patient through direct or simple inter-contact. The first case of secondary exposure to the index case (Index case) to the diagnosis of disease interval suggested an average of 3.8 years (range 0-12 years, median 3 years) longer incubation period. This article reports the epidemiological investigation of two cases of lymphoblastoma cases, the first contact with the index case to the symptoms appear 2 ~