用“polio vaccine”造句大全，polio vaccine造句
oralpoliovaccineOneofthepoliovaccinesisakilledvaccine.Laboratorystocksmustbecontainedandsafemanagementofthewildvirusininactivatedpoliovaccine(IPV)manufacturingsitesmustbeassuredbeforetheworldcanbecert...
用“polio”造句大全，polio造句
Thespreadofpoliocouldendthisyear.Foremostamongtheseisthedrivetoeradicatepolio.PolioeradicationhasbenefitedimmenselyfromhavingRotary'ssupport.Rotaryhadthevisiontogetinvolvedin1985andhaskeptpolioeradic...