Originally Posted by
EWR764
The architecture of the "travel ready center" is intended specifically to accommodate it, but I don't think there's any consensus yet on how a vaccine passport will work in practice. For example, how will one verify vaccination status? At the moment it would seem the handwritten CDC card is all you get, but that's easily forged and not independently verifable, as far as we know. Then again, elsewhere, in places requiring yellow fever vaccination, all I need to show is the handwritten "yellow card" for entry. I'm not aware of any official COVID-19 vaccination registry, which leads me to believe testing protocols will remain in place for some time. The vaccine presently seems to just be assurance you won't test positive and be stuck away from home.
Vaccines only prevent you from getting really sick from the virus. You can still be a carrier. Virus particles in your throat and nasal passage are not in contact with your blood so the antibodies from the vaccine cannot destroy them. You can certainly still test positive after full vaccination.