Plenty of medicines were new and then removed from the market.
Being cautious about new techniques seems reasonable, given the history of medicine. (And frankly, a lot of other fields)
It would be nice to be able to say this new vaccine is based on existing methods that we know from years of experience are very safe; but we can't for this candidate. That doesn't make it less safe (or more safe), but it makes the risk more unknown.
Being cautious about new techniques seems reasonable, given the history of medicine. (And frankly, a lot of other fields)
It would be nice to be able to say this new vaccine is based on existing methods that we know from years of experience are very safe; but we can't for this candidate. That doesn't make it less safe (or more safe), but it makes the risk more unknown.