There are 10 potential COVID-19 vaccines in the Phase III trial (final stage) of their clinical evaluation. The World Health Organization (WHO) report published on 3rd November and it says four of which are being developed by U.S companies. This includes one from American pharmaceutical company Pfizer, in collaboration with Germany’s BioNTech firm. Pfizer said …
There are 10 potential COVID-19 vaccines in the Phase III trial (final stage) of their clinical evaluation. The World Health Organization (WHO) report published on 3rd November and it says four of which are being developed by U.S companies.








