This is no longer true. We do have data that the vaccines reduce transmission, thanks to Israel's mass vaccination program: https://www.reuters.com/article/heal

This is no longer true. We do have data that the vaccines reduce transmission, thanks to Israel's mass vaccination program: https://www.reuters.com/article/health-coronavirus-israel-vaccine-int-idUSKBN2AJ08J https://www.reuters.com/article/health-coronavirus-israel-va... The margin of reduced transmission is very close to the margin of reduced symptoms: 90% reduction in asymptomatic transmission, and 93% reduction for symptomatic transmission. The study is only on Pfizer's vaccines, but I would expect Moderna's to perform similarly, since they're both MRNA vaccines targeting the spike protein and they have similar effectiveness at reducing symptoms.