The 3 week delay was most likely because this was Moderna's first Phase 3 ever. They didn't even know what forms to fill out and needed FDA guidance the whole w

The 3 week delay was most likely because this was Moderna's first Phase 3 ever. They didn't even know what forms to fill out and needed FDA guidance the whole way. Pfizer on the other hand has the former head of FDA on their board and hundreds of other trials conducted successfully.