1982年美国首次报道由母子感染的后天性免疫功能不全症侯群病例，至1995年日本一共发生15例。该文报道1例HIV经母子传播途径造成的后天性免疫功能不全症侯群的早期发病病例。病例4个月男性患儿，1胎，足月头位顺产。以顽固性肺炎，肝脾肿大，以及全身淋巴结肿大，体重增加不显 In 1982, the United States reported for the first time a case of postemergence immune deficiency syndrome infected by mother and child. By 1995, a total of 15 cases occurred in Japan. This article reports a case of HIV infection caused by the mother-child transmission of acquired immune dysfunction Hou group of early onset cases. Cases of 4-month-old male child, 1 child, full-term head-bit delivery. To intractable pneumonia, hepatosplenomegaly, and systemic lymphadenopathy, weight gain was not significant