11-19-2020, 08:14 PM 
		
	
	Covid vaccine front-runners: How much they cost, who’s bought them and how they’re stored
- Two Covid-19 vaccines have been found to be highly effective in late-stage trials in recent days, boosting optimism at a time when health systems in Europe and the U.S. are once again being pushed to breaking point.
 
- Huge challenges remain before a vaccine can be rolled out, however.
 
- The global battle to secure prospective supplies has raised alarm about equitable access, while questions remain over logistics, distribution, and, perhaps most significantly, cost.
 

 
 

 
