I think the problem with the 1976 vaccine was it was rushed out before all of the proper phase clinical trials were completed.
In this case, when the vaccines are ready, the vaccines (but for the Russian one) will only be given after they successfully go through all three phases for safety and efficacy. There will also be a phase 4 which is designed to carefully identify any issues while administering the vaccine to the general population.
That’s exactly what I said it was rushed. and the whole point of these vaccines being ready in the next few months was that they were being rushed. I’m not saying the vaccine isn’t effective I’m just saying that sometimes rushing it doesn’t have the perfect track record.
The Russian vaccine program does include appropriate testing—BUT in the wrong order!!!!
https://www.bbc.com/news/world-europe-54036221
They may eventually get it right, but unfortunately after many people have been vaccinated with their product!!!!
The Russian vaccine is very similar to the Oxford vaccine, now in Phase 3 trials:
https://www.contagionlive.com/news/russia-approves-first-covid19-vaccine
So things might work out well with both vaccines.
The Oxford vaccine is based on a non-replicating chimpanzee adenovirus used to deliver a SARS-CoV-2 spike protein.
Other things being equal, I would tend to trust a protein-based vaccine like Oxford’s more than an mRNA vaccine like Moderna’s. (The latter is base on a very novel concept.) But we’ll have to see what the clinical and biochemical tests show in order to compare and evaluate the two.