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2000年10月,世界卫生组织(以下简称 WHO)西太平洋地区宣布成为无脊髓灰质炎(以下简称脊灰)区域,标志着我国已达到无脊灰目标。实现无脊灰目标,仅仅是消灭脊灰工作的一个阶段性成果。目前,国外一些国家特别是与我国接壤的部分国家仍有脊灰流行,脊灰野病毒输入我国并引起流行的危险依然存在。在实现无脊灰目标后,WHO 美洲区的多米尼加、海地和西太区的菲律宾又发生了由脊灰疫苗衍生病毒(VD-PV)引起的脊灰流行,近几年我国也发现了脊灰疫苗变异病毒导致的病例,
In October 2000, the declaration by the World Health Organization (hereinafter referred to as the WHO) of the non-poliomyelitis (hereinafter referred to as polio) area in the western Pacific indicates that our country has reached the goal of polio-free. Achieving the goal of polio-free is only a milestone in the eradication of polio. At present, polio is still endemic in some countries abroad, especially in some countries bordering our country. The danger of wild poliovirus entering our country and causing epidemics still exists. Poliomyelitis-causing virus (VD-PV) -related poliovirus occurs again in the Dominican Republic, Haiti and Western Pacific regions in the WHO Americas region after achieving the goal of polio-free. In recent years, polio has also been found in our country Vaccine variants caused by the virus cases,