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> So yes, you can theoretically spread it, but once vaccinated you're about as effective at spreading it as a doorknob someone sneezed on You should most defin

> So yes, you can theoretically spread it, but once vaccinated you're about as effective at spreading it as a doorknob someone sneezed on You should most definitely point out that yours is a conjecture. A reasonable one, but still completely unsupported by clinical data - not because data refutes it, but because there is no data. All trials only examined the reduction of symptomatic infection; they didn't even try to measure whether vaccinated people were able or not to spread the virus. I would expect your conjecture to be true, but humans are weird, viruses are weird and medicine should be based in evidence, and evidence isn't in yet.

Kliment 6y ago
This is true of the large scale vaccine trials, yes. However, there have been several small long term monitoring studies that test immunity persistence post infection recovery, and they seem to show that replication is effectively prevented when exposed to blood serum with acquired immunity with a fairly short time delay (this is what motivated the attempt to do serum transfusions from recovered patients as treatment, but I'm not sure what came of that). That said, you're right that my comparison is overstating the confidence we currently have in this.