世衛(wèi)開始使用新的疫苗來(lái)預(yù)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(nèi)瓦世衛(wèi)組織的羅德?科第斯表示這種新的二價(jià)疫苗解決了這個(gè)問題。 “這種疫苗的優(yōu)點(diǎn)在于它可以一劑量對(duì)抗兩種類型的脊髓灰質(zhì)炎?！?卡羅爾?潘達(dá)克表示測(cè)試結(jié)果顯示新疫苗比三價(jià)疫苗的效果要好30%。 去年阿富汗新增30多起脊髓灰質(zhì)炎病例，其中一半感染了I型，其余的為III型。羅德?科第斯說(shuō)這就表明了新疫苗同時(shí)以兩類病…