世衛(wèi)開始使用新的疫苗來預防小兒麻痹癥
Hints:
Rod Curtis
Geneva
bivalent vaccine
trivalent vaccine
type I
type III
polio
Carol Pandak
Afghanistan
Nigeria
Pakistan
Rod Curtis at the World Health Organization in Geneva says the new bivalent vaccine solves the problem. "The beauty of the bivalent vaccine is that it's able to attack both types of wild polio virus in one dose." Carol Pandak says tests found the new vaccine to be 30% more effective than the triva…
日內瓦世衛(wèi)組織的羅德?科第斯表示這種新的二價疫苗解決了這個問題。 “這種疫苗的優(yōu)點在于它可以一劑量對抗兩種類型的脊髓灰質炎?！?卡羅爾?潘達克表示測試結果顯示新疫苗比三價疫苗的效果要好30%。 去年阿富汗新增30多起脊髓灰質炎病例，其中一半感染了I型，其余的為III型。羅德?科第斯說這就表明了新疫苗同時以兩類病…