.. Know all the 10 leading Covid-19 vaccine candidates that are now in the phase III clinical trials. pic.twitter.com/w8Mf0Ybq0j — Noor Hisham Abdullah (@DGHisham) November 28, 2020 .. https://www.bloomberg.com/news/articles/2020-11-23/astra-delivers-but-can-t-match-rivals-here-s-what-we-know .. Prices of leading vaccines for 2 doses (US$):Moderna 25-37Pfizer-BioNTech 40Johnson … Continue reading Too many Covid-19 vaccines? Wait and see…