A: a vaccine-derived poliovirus (VDPV) is a rare strain of poliovirus, genetically mutated from the strain contained in oral polio vaccine (OPV).
答：疫苗衍生脊髓灰质炎病毒(VDPV)是一种罕见的脊髓灰质炎病毒株，由口服脊髓灰质炎疫苗(opv)里的病毒株遗传变异而来。
Recognizing the risk of a poliovirus importation and outbreak, Uzbekistan has conducted 4 nationwide OPV campaigns, the last one from 25-31 October.
由于看到了输入脊髓灰质炎病毒以及发生疫情的风险，乌兹别克斯坦已经开展了4次全国性口服脊髓灰质炎疫苗活动，最后一次活动发生在10月25日至31日。
In Turkmenistan (three WPV1 cases), no new cases have been reported since 28 June 2010, and four mass OPV immunization campaigns have been completed.
在土库曼斯坦(有3例1型野生脊灰病毒病例)，2010年6月28日以来没有出现新的病例报告，已经完成了四轮大规模口服脊髓灰质炎疫苗免疫接种活动。
Travellers from Pakistan should have a full course of vaccination against polio before leaving Pakistan, with a minimum one dose of OPV before departure.
从巴基斯坦出发的旅客应在离开巴基斯坦前完成免疫接种的完整疗程，出发前至少要服用一剂口服脊髓灰质炎疫苗。
Travelers from polio-affected areas should have a full course of vaccination against polio before leaving, with a minimum one dose of OPV before departure.
来自受脊髓灰质炎影响地区的旅行者，应在行前获得脊髓灰质炎疫苗完整程序的接种，出发前至少应获得一剂口服脊髓灰质炎疫苗。
In this thesis, some basic research work is carried out based on OEL and OPV characteristics.
本论文基于此开展了一些探讨性的研究工作。
Henceforth it is advisable to enhance the training force of clinicians at county-level medical facilities to further improve OPV immunization rate.
今后应加大对县级医疗机构临床医生的培训力度，进一步提高OPV免疫接种率。
The need for additional rounds of mass oral polio vaccine (OPV) immunization will be based on an ongoing evaluation of epidemiological and laboratory data.
是否有必要进行更多轮次的口服脊髓灰质炎疫苗大规模免疫接种活动，将以正在进行的流行病学和实验室数据评估情况作为根据。
National immunization Days (NIDs) using bivalent OPV have been conducted in May, with further supplementary immunization activities (SIAs) planned for June.
今年5月已经利用双价口服脊灰疫苗开展了全国计划免疫日活动(NIDs)，今年6月计划进一步开展补充免疫活动(SIAs)。
More than 97.0% of migrant children who missed routine OPV(immunization) were vaccinated. In 2004,90.0% of zero-dose migrant children of MV, DPT or JE were vaccinated.
2004年麻疹疫苗、百白破联合疫苗、流行性乙型脑炎疫苗零剂次免疫儿童补种率>90%。
The drop-out rate of OPV was 22.0%. Zero inoculation rate was 17.8%. Both were positively related with age and were higher in some inflowing areas than city-wide average level.
OPV漏种率22.0%，零剂次免疫率为17.8%，两指标均随年龄的增加而上升，部分外来人口流入地区上述指标高于全市水平；
Conclusion Both intracerebral and intraspinal injections were sensitive methods for neurovirulence test of OPV. The results of pathological examinations were accurate and reliable.
结论脑内注射法与脊髓内注射法均是OPV猴体神经毒力试验的敏感方法，病理结果准确可靠。
According to the Venezuelan Prisons Observatory (OPV), an advocacy group, more than 43,000 prisoners are crammed into jails built for 15,000. Four-fifths of them have not even been sentenced.
据OPV(委内瑞拉监狱瞭望台，一家宣传组织)称，原本为容纳15,000人而建造的监狱被塞入43,000人，这些人中的五分之四未经判决。
Conclusion For consolidating the polio-free, we should raise and keep the higher immunization rate of OPV and keep the sensitivity timeliness and completeness of AFP case surveillance system.
结论为维持无脊灰状态，仍需提高和保持儿童opv的免疫覆盖率，并保持AFP监测系统的敏感性、及时性、完整性。
According to the Venezuelan Prisons Observatory (OPV), an advocacy group, more than 43, 000 prisoners are crammed into jails built for 15, 000. Four-fifths of them have not even been sentenced.
据OPV(委内瑞拉监狱瞭望台，一家宣传组织)称，原本为容纳15,000人而建造的监狱被塞入43,000人，这些人中的五分之四未经判决。
Oral live poliomyelitis vaccine is the most effective means in preventing poliomyelitis. Full cresm milk powder is the main appendix in producing Oral Live Poliomyelitis Vaccine Dragée (OPV D).
口服脊髓灰质炎活疫苗是预防脊髓灰质炎疾病的最有效方法，全脂乳粉是生产口服脊髓灰质炎活疫苗糖丸的主要赋形剂。
Oral live poliomyelitis vaccine is the most effective means in preventing poliomyelitis. Full cresm milk powder is the main appendix in producing Oral Live Poliomyelitis Vaccine Dragée (OPV D).
口服脊髓灰质炎活疫苗是预防脊髓灰质炎疾病的最有效方法，全脂乳粉是生产口服脊髓灰质炎活疫苗糖丸的主要赋形剂。
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