US plans massive coronavirus vaccine testing effort to meet year-end deadline
ফিনান্সিয়াল এক্সপ্রেস
প্রকাশিত: ২৩ মে ২০২০, ২০:০৫
The United States plans a massive testing effort involving more than 100,000 volunteers and a half dozen or so of the most promising vaccine candidates in an effort to deliver a safe and effective one...