1957年，顾被叫去领导脊髓灰质炎的研究。
顾说：“那时候，预防脊髓灰质炎的唯一办法就是发明疫苗。”
"At that time the only way to prevent polio was to invent a vaccine," said Gu.
1959年，顾成功研制出第一种脊髓灰质炎活疫苗。
In 1959 Gu succeeded in developing the first polio live vaccine.
1959年，顾成功研制出第一种脊髓灰质炎活疫苗。
In 1959 Gu succeeded in developing the first polio live vaccine.
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