How Many Covid Vaccines Do We Need? Fate of Tier 2 Vaccines Seems Grim.
There are still about 50 vaccines for Covid-19 in Phase 1 clinical trials, and 77 in non-clinical development. Of the 86 vaccines in clinical trials, 23 have reached Phase 3 clinical trials the world over, 13 of which have been approved or authorized in at least one country. The Covid vaccine market is already quite … Read more