Mop-up Immunization

The most recent case had onset of paralysis on 31 May, just before the immunization 'mop-up' campaign held on 31 May to 2 June.

最近的病例于5月31日出现麻痹，正是在5月31日至6月2日开展的‘扫荡’免疫运动之前。

Note: A 'mop-up' refers to a rapid and massive, house-to-house immunization response within four weeks of confirmation of a circulating poliovirus.

说明：“扫荡”系指在确认正在传播的脊髓灰质炎病毒后4周内迅速和大规模挨家挨户免疫应对。