WHO宣布在2000年全球消灭脊髓灰质炎(脊灰),我国提出1995年消灭野病毒株,但广州近年病例有上升的趋势,故通过定期监测人群免疫状况及病毒传播动态是很有必要的。本文报告1990～1991年本市人群脊灰中和抗体及带毒情况的调查结果。材料与方法1.标本采集:在市区(海珠)、郊区(白云)和乡镇区(番禺)随机抽样0～1岁、～2岁、～3岁、～5 WHO announced the global elimination of poliomyelitis (polio) in 2000. Our country put forward the elimination of wild virus strains in 1995. However, the number of cases in Guangzhou has been on the rise in recent years. Therefore, it is necessary to regularly monitor the population’s immune status and the dynamics of virus transmission. This article reports the survey results of the polio neutralizing antibodies and poisoning in the population from 1990 to 1991 in this city. Materials and methods 1. Specimen collection: In the urban area (Haizhu), suburbs (Baiyun) and township (Panyu) random sampling 0 to 1 year old, ~ 2 years old, ~ 3 years old, ~ 5