全球最大的两家疫苗公司英国葛兰素史克公司和法国赛诺菲集团正合作研发新冠肺炎疫苗，或将在数月后开始人体试验。如果试验获得成功，疫苗将在2021年下半年大量投放市场。 A worker checks the temperature of a customer at the entrance of a supermarket in Turin, Italy, on Tuesday, as the spread of the novel coronavirus continues. Two of the world’s biggest vaccine companies have joined forces in an “unprecedented” collaboration to develop a Covid-19 vaccine. 世界上最大的两家疫苗公司展开“前所未有”的合作，联手研发新冠肺炎疫苗。 GlaxoSmithKline and Sanofi, which combined have the largest vaccine manufacturing capability in …
