A preliminary analysis shows the first coronavirus vaccine can prevent more than 90% of people from getting Covid-19. The developers – Pfizer and BioNTech – plan to apply for emergency approval to use the vaccine by the end of the month.

A preliminary analysis shows the first coronavirus vaccine can prevent more than 90% of people from getting Covid-19. The developers – Pfizer and BioNTech – plan to apply for emergency approval to use the vaccine by the end of the month.