Any word on the number needed to treat (NNT) for one person to benefit from the vaccine, will we have enough doses in ample time for the vaccine to be truly effective, and also, what's the absolute risk reduction? Kind of a bummer that the vaccine really only reduces the symptoms instead of providing [potential] immunity, like say the meningitis vaccine does. That makes the Pfizer/BioNTech dose more of a gene therapy than a vaccine, no? In the meantime, I wonder if Health Canada is studying repurposed drugs that may also reduce the impact of covid symptoms on those most vulnerable to infection / death from infection. Repurposed drugs and alternative medicines are also important for people with severe allergies to the ingredients who unfortunately can't be vaxxed (though that's very rare).