[Edward Teach]

"That leaves open the possibility that some vaccinated people get infected without developing symptoms"

Epidemiology FAIL! Immune means you CANNOT become infected, AT ALL! Your immune system will produce antibodies IMMEDIATELY when a targeted invader appears, at a rate hundreds of times faster than the invader can replicate itself. It will NOT be able to gain even the tiniest of toeholds in a system that has been IMMUNIZED.

[Delta 21]

I suppose you think that “quarentine” means ‘to isolate confirmed sick people so they wont infect any one else’?

[ProtectOurFreedom]

I have no idea if the article is correct or not, but here is the key point:

Some of those antibodies will circulate in the blood to the nasal mucosa and stand guard there, but it’s not clear how much of the antibody pool can be mobilized, or how quickly. If the answer is not much, then viruses could bloom in the nose — and be sneezed or breathed out to infect others.

“It’s a race: It depends whether the virus can replicate faster, or the immune system can control it faster,” said Marion Pepper, an immunologist at the University of Washington in Seattle. “It’s a really important question.”

This is why mucosal vaccines, like the nasal spray FluMist or the oral polio vaccine, are better than intramuscular injections at fending off respiratory viruses, experts said. The next generation of coronavirus vaccines may elicit immunity in the nose and the rest of the respiratory tract, where it’s most needed. Or people could get an intramuscular injection followed by a mucosal boost that produces protective antibodies in the nose and throat.

This is the first I've heard about the difference in effect between vaccines administered intramuscularly and mucosaly.