[astrange]

Each different vaccine may or may not give sterilizing immunity (whether or not you can pass it on without symptoms).

It has to be proven for each one and this hasn't been done yet. The nasal vaccines, which aren't approved yet, seem more likely to do this.

[Vecr]

How easy would it be it the future to get a different vaccine course if the one you ended up with was not sterilizing? I assume you would have to pay with your own money, but would you also have to go to a different country and "forget" your immunization record somewhere after you arrive?

[andi999]

Sentence is a bit ambigous. Are the nasa vaccines likely to give sterilizing immunity or the opposite?

[astrange]

They're more likely to work, because they go in the places (your nose) that need to be sterilized. But it's only theoretical.

[dragonwriter]

> They're more likely to work, because they go in the places (your nose) that need to be sterilized.

That doesn't make much sense; vaccines aren't topical treatments for current infections but systemic preparation against future infections.

[astrange]

There's special antibodies for the nose and other membranes. The immune system is incredibly complicated.

https://en.wikipedia.org/wiki/Immunoglobulin_A