https://www.cnn.com/2020/11/20/asia/china-sinopharm-vaccine-test-intl-hnk/index.html 从7月份开始的在10多个国家进行的三期临床试验还没有完全结束，严谨的结果还需要等待。 给出的部分例子里，一个公司99名员工，打过疫苗的81人无一人感染，没打过疫苗的18人里有10人感染，还是比较有说服力。 a transnational company has 99 employees in one of its overseas offices, of whom 81 were vaccinated. And later, an outbreak broke out in the office, 10 of the 18 people who were not vaccinated were infected and none of those vaccinated were infected
从7月份开始的在10多个国家进行的三期临床试验还没有完全结束，严谨的结果还需要等待。
给出的部分例子里，一个公司99名员工，打过疫苗的81人无一人感染，没打过疫苗的18人里有10人感染，还是比较有说服力。
a transnational company has 99 employees in one of its overseas offices, of whom 81 were vaccinated. And later, an outbreak broke out in the office, 10 of the 18 people who were not vaccinated were infected and none of those vaccinated were infected