‘The first effective coronavirus vaccine can prevent more than 90% of people from getting Covid-19, a preliminary analysis shows. The developers - Pfizer and BioNTech - described it as a "great day for science and humanity". Their vaccine has been tested on 43,500 people in six countries and no safety concerns have been raised. The companies plan to apply for emergency approval to use the vaccine by the end of the month.’
Read here (BBC, Nov 9, 2020)
