Vaccinated people must be required to wear masks to prevent the transmission of more virulent strains. Unvaccinated people, because they would be homebound (or

Vaccinated people must be required to wear masks to prevent the transmission of more virulent strains. Unvaccinated people, because they would be homebound (or killed) by the more virulent strains, must be allowed to go about their business maskless. This way, we'll achieve herd immunity by spreading less virulent strains around. Sort of like an airborne live attenuated vaccine.