[CyanLite2]

This is a little bit of a misnomer. Anybody can pass on the virus. If you have it in your nose and you sneeze, you'll spread it everywhere. If you have it on your hands and you touch high-traffic surface areas, you'll spread it. The point is that if a high number of people are vaccinated, then it won't matter if the virus fragments are spread, as long as it's not causing disease then it doesn't matter.