NFLD's product requires a human blood supply with excess safe blood. If there is a huge problem with the blood supply so there is a shortage of safe blood, NFLD will do real well until their current inventory is gone then they'll be stuck. (Lucky for all of us and NFLD investors, that's unlikely to happen.)
And yes, NFLD bulls, I know their process theoretically can take in unsafe blood and clean it to make it safe. Last I heard, that wasn't the manufacturing process they were validating with the FDA. So you can toss that theory out the window until they run prospective safety trials using bad blood on the input side.