The goal of polio eradication is edging ever closer to reality. There is much to celebrate; data from Nigeria suggest limited transmission of wild-type and vaccine-derived polio virus in the northern states despite the perilous security situation, while in Pakistan and Afghanistan inaccessible populations are becoming smaller and efforts to improve managerial and operational capacity have resulted in a substantial reduction of wild-type cases.¹ Although these improvements have been welcomed, the Independent Monitoring Board of Polio Eradication described in 2015 the Global Polio Eradication Initiative (GPEI) as having not “reached peak performance”.

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了解对脊髓灰质炎疫苗的承诺

根除脊髓灰质炎的目标越来越接近现实。有很多值得庆祝的事情；尼日利亚的数据表明，尽管安全形势严峻，北部各州野生型和源自疫苗的脊髓灰质炎病毒的传播仍然有限，而在巴基斯坦和阿富汗，无法进入的人口正在减少，并且为提高管理和业务能力而进行的努力已大大减少了野生型病例。¹尽管这些改进受到欢迎，但消灭脊灰独立监测委员会在2015年将全球消灭脊灰行动（GPEI）描述为尚未“达到最佳表现”。