No, it's not morally equivalent, as one of these is very obviously unintentional and a result of simply living one's normal life, and the other is neither of those things.
It's also somewhat irrelevant since the vaccines do not prevent transmission. At best they lower the chance to some degree and now you're in the weeds of trying to measure something that's too multivariate to measure.
It's also somewhat irrelevant since the vaccines do not prevent transmission. At best they lower the chance to some degree and now you're in the weeds of trying to measure something that's too multivariate to measure.