Poliovirus type 1 脊髓灰质炎Ⅰ型野毒株
MOPV 1 - developed in only five months - has already provided high levels of protection against type 1 poliovirus in 12 countries.
MOPV 1仅用5个月就研制成功，已经在12个国家提供了针对1型脊灰病毒的高度保护。
In addition to international spread of type 1 polio, wild poliovirus type 3 originating from northern Nigeria has also been reported in Chad and Niger.
除了在国际范围蔓延的1型脊髓灰质炎外，乍得和尼日尔也报告了起源于尼日利亚北部的3型脊髓灰质炎病毒。
Four cases have been confirmed to have been caused by wild poliovirus type 1 and laboratory testing continues.
经确认，四例病例由1型野生脊灰病毒引起，实验室检测还在继续。
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