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分析了广东省急性弛缓性麻痹（ＡＦＰ）病例密切接触者粪便标本的采集情况和病毒分离结果，发现在ＡＦＰ病例接触者粪便标本采集率逐年提高的情况下，脊髓灰质炎（脊灰）病毒分离率维持在２－４ ％ ～４－６％ 之间，而且ＡＦＰ病例接触者与ＡＦＰ病例粪便标本病毒分离同时阳性的比例较低。阻断脊灰野病毒循环后采集ＡＦＰ病例接触者粪便标本进行病毒分离意义不大。
The collection of stool specimens from close contacts and the results of virus isolation in acute flaccid paralysis (AFP) cases in Guangdong Province were analyzed. It was found that polio isolates of polio (polio) virus were isolated when the collection rate of stool specimens from AFP cases was increased year by year. Rate maintained at 2-4% ~ 4-6%, and AFP case contacts and AFP cases stool specimens virus positive while a lower proportion of positive. It is of little significance to isolate the virus from the stool samples collected from AFP case-infected stool samples after blocking the circulation of poliovirus.