To add to that, except for Pfizer, all the other 5 vaccine contenders chosen by the Operation Warp Speed (Moderna, J&J, Oxford-AZ, Merk, Sanofi-GSK) received money to expedite their manufacturing regardless of the vaccine being successful of not. Together they received $11 BN. What can they show for that? Excuses about microfluidics? And vials ? (did you hear the one that Moderna will start putting 15 doses in vials intended for 10, because it turn out that vials are a bottleneck too after all). They couldn't figure out the vial thing in 10 months?
[1]https://en.wikipedia.org/wiki/Operation_Warp_Speed#Companies...