Jeff Blackburn, one of Amazon’s highest-ranking and longest-serving executives, is returning to the company after a brief hiatus and will serve as senior vice president of a new Global Media..查看文章
The world’s first mass inoculation effort in youngsters began after the U.S. government green lit the use of the Pfizer-BioNTech vaccine in children aged 12 to 15. It also underscored the wi..查看文章
Fully vaccinated people don’t need to wear a mask or physically distance during outdoor or indoor activities, with few exceptions, federal health officials said, the fullest easing of pandem..查看文章
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