Sent_en: 2zh The current polio epidemic has been going on for a year and there have been outbreaks in the last six months in Burkina Faso, Cameroon, Chad, Guinea, Liberia, Mali, Mauritania, Senegal and Sierra Leone.
Sent_yy: 目前的脊髓灰质炎流行已持续一年，过去6个月在布基纳法索、喀麦隆、乍得、几内亚、利比里亚、马里、毛里塔尼亚、塞内加尔和塞拉利昂均有暴发。