poliomyelitis

The nurse explained how vaccination protects children against poliomyelitis. ▶

护士解释了接种疫苗如何保护儿童免患脊髓灰质炎。

International vaccination programmes have greatly reduced poliomyelitis, although continued monitoring remains essential to prevent further outbreaks.

国际疫苗接种计划大幅减少了脊髓灰质炎病例，但持续监测对于防止再次暴发仍至关重要。