Tokyo Olympics 2020: Games organisers hail vaccine news as 'relief' yet bio-security plans unchanged
• 4 years agoOlympic officials have regularly said that a coronavirus vaccine is not a precondition for staging the Games, now scheduled to open a year late in July 2021.
Pfizer announces $1.95 billion deal to produce 100 million doses of coronavirus vaccine by year-end
• 5 years agoPfizer said that large-scale safety and efficacy trials were to begin this month, with a regulatory review set for as early as October, although nothing was guaranteed.