In years gone by, many children were afflicted with polio, measles, mumps, Rubella, influenza, small pox, diphtheria, whooping cough and others.
在过去的岁月中,许多儿童患有小儿麻痹症,麻疹,腮腺炎,风疹,流感,天花,白喉,百日咳和其他疾病。
Countless lives were saved from the ravages of diseases such as polio and small pox.
无数人的生命被挽救,从破坏的疾病,如脊髓灰质炎和天花。
Scientists had intended to find a cure for small pox , but they got no where .
科学家本来想寻找一种治疗天花的特效药,但他们没有成功。
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