KGO ABC World News Tonight With David Muir April 2, 2021 00:42:00
The pfizer vaccine also appears to work against the worrisome south african variant. but johnson & johnson is facing fresh scrutiny after an ingredient mixup at a baltimore manufacturing plant, potentially ruined about 15 million future doses. >> it's really quite unfortunate that about 15 million doses now are not going to be able to be used. but you do have checks and balances and you see that. and that's the reason why the good news is that it did get picked up. >> reporter: the mistake at bioemergent caught weeks ago during a quality control check. the fda saying there was no risk to anyon...