I specifically said mini-pill in my reply. As far as I understand, birth control most commonly refers to the pill, as it is the most commonly prescribed form of birth control (condoms, coitus interruptus etc. not being a prescribed form).
My main beef is that the percentage efficacy calculation is different and thus not comparable. Birth control is calculated at the % chance of an event within a year. Vaccines are not calculated in the same manner, so it is hard to say that one is more effective without having the data on vaccine efficacy over a year. The data I have seen thus far does not yet indicate much of a wane over time in the same manner as birth control. Furthermore, birth control failure is due to misuse most often, not due to waning effectiveness of an initial dose.
Furthermore, sperm and ovum do not tend to have selective pressure to work against birth control. It is unknown at this time whether the mRNA vaccines are generic enough to be effective against whatever mutations to the spike protein may form.
Essentially my point is this, you can also say that it is about as effective as the odds of a pitcher throwing a no hit game. But besides the numbers which communicate those odds, everything that is used to calculate and define the event is different.
My main beef is that the percentage efficacy calculation is different and thus not comparable. Birth control is calculated at the % chance of an event within a year. Vaccines are not calculated in the same manner, so it is hard to say that one is more effective without having the data on vaccine efficacy over a year. The data I have seen thus far does not yet indicate much of a wane over time in the same manner as birth control. Furthermore, birth control failure is due to misuse most often, not due to waning effectiveness of an initial dose.
Furthermore, sperm and ovum do not tend to have selective pressure to work against birth control. It is unknown at this time whether the mRNA vaccines are generic enough to be effective against whatever mutations to the spike protein may form.
Essentially my point is this, you can also say that it is about as effective as the odds of a pitcher throwing a no hit game. But besides the numbers which communicate those odds, everything that is used to calculate and define the event is different.