I know we're not supposed to discuss downvotes, but can anyone explain why this is downvoted so much? I want to know if there's some kind of misinformation here that I missed, so I'll spot it in the future.
Some vaccines are grown in HEK 293 cells. HEK 293 is a cell line taken from an aborted fetus. (HEK -> Human Embryonic Kidney). Many people consider vaccines grown in HEK 293 to be immoral. Chicken eggs are a moral alternative medium.
It doesn't necessarily apply in this case because the Pfizer/BioNTech vaccine was only tested on HEK 293, not grown in it. (Moderna's vaccine, conversely, was grown in HEK 293.) Some people still consider the testing to be immoral. Some don't.
Do you have a link to confirm that? I thought that Pfizer/BioNTech as well as Moderna used HEK cells solely for testing.
This is false. Moderna's vaccine is synthesized, not grown.