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目的了解云南省与缅甸接壤边境地区,人群口服脊髓灰质炎(脊灰)减毒活疫苗(OralPoliom yelitis Attenuated Live Vaccine,OPV)接种情况,监测脊灰病毒(Poliovirus,PV)流行情况,为维持无脊灰提供参考。方法 在与缅甸接壤的边境6个设区的市(州)中,随机选择保山市、德宏傣族景颇族自治州、临沧市,每个市(州)选择3个县,采用容量比例概率抽样方法 ,对适龄儿童开展OPV接种率调查,采集健康儿童粪便标本和外环境水样标本,开展PV监测。结果 3个县适龄儿童OPV常规免疫和加强免疫接种率均>95%,在健康人群和外环境中未发现脊灰野病毒和疫苗衍生脊灰病毒。结论云南省与缅甸接壤边境地区目前仍维持无脊灰状态,应继续加强脊灰监测和OPV免疫。
Objective To understand the situation of oral poliovirus (OPV) inoculated with oral poliomyelitis (poliovirus) in the bordering border between Yunnan Province and Myanmar and to monitor the prevalence of poliovirus (PV) Polio provides a reference. Methods Baoshan, Dehong Dai and Jingpo autonomous prefectures and Lincang were randomly selected from the six districts along the border with Burma. Three counties were chosen for each city (state) Methods To investigate the OPV vaccination rate of school-age children and collect stool samples from healthy children and water samples from external environment for PV monitoring. Results The routine immunization and booster vaccination rates of OPV in school-age children in all three counties were> 95%. No poliovirus and vaccine-derived poliovirus were found in healthy population and outside environment. Conclusions The boundary between Yunnan Province and Burma is still polio-free, poliovirus surveillance and OPV immunization should be strengthened.