> They do prevent transmission, since they make people less likely to be infected, and if you're not infected with the virus you won't transmit it. Incorrect.

> They do prevent transmission, since they make people less likely to be infected, and if you're not infected with the virus you won't transmit it. Incorrect. Intramuscular vaccines induce antibody production at nearby lymph nodes inside of the body; and these mRNA vaccines in particular also cause S-antibodies to circulate in one's blood (even though that's unintended and the long term effects are still unknown). Because the intramuscular route of administration, S-antibodies are not present in significant quantities inside the lungs of vaccinated individuals. Thus with covid-19 being an airborne disease, vaccinated people can still exhale virus-containing breaths and transmit the disease to others, who can then go on to contract the illness, whether they're vaccinated or not. So while the vaccines offer protection against serious illness to those who receive it, it certainly does not prevent transmission.