Yes, though, You're going to have poor quality arguments if the terms are poorly defined, as above. Does vaccinating against Covid-19 prevent _some_ transmiss

Yes, though, You're going to have poor quality arguments if the terms are poorly defined, as above. Does vaccinating against Covid-19 prevent _some_ transmissions - yes, obviously. efficacy measures that percentage. Does vaccinating against Covid-19 prevent _all_ transmissions - obviously not. Watch out for the people conflating these two statements, rhetorically shifting from one the other when it suits them. e.g. the (wrong) statement that "vaccinating against COVID-19 doesn't prevent transmission so it's useless" uses the (true) first sense for the first half, then draws a conclusion as though it's the second sense.