GENEVA – If you want to know the value of vaccines, just spend some time in a clinic in Africa. The faces of the mothers and fathers say it all: vaccines prevent illness and save lives.
日内瓦—如果你想知道疫苗的价值，去非洲诊所看一看就行了。那里父母亲的脸色说明了一切：疫苗防止病痛，拯救生命。