Not being approved could very well be a political move on Europe's part - they have plenty of motives not to approve it, and equally they have plenty of reasons not to trust Russia's claims. In my country it was a running joke that if it's ever available here, the viles would be laced with novichok.
The paper is somewhat questionable though as it shows a 100% effectiveness against severe infection.
Most likely it is a similar effectiveness to other adenovirus based vaccines, which is less than mRNA vaccines, but still better than no vaccine. It has been reported that some countries are paying close to $20 per dose, so it's not any cheaper than mRNA vaccines.
https://www.nature.com/articles/d41586-021-01813-2
Not being approved could very well be a political move on Europe's part - they have plenty of motives not to approve it, and equally they have plenty of reasons not to trust Russia's claims. In my country it was a running joke that if it's ever available here, the viles would be laced with novichok.
The paper is somewhat questionable though as it shows a 100% effectiveness against severe infection.
Most likely it is a similar effectiveness to other adenovirus based vaccines, which is less than mRNA vaccines, but still better than no vaccine. It has been reported that some countries are paying close to $20 per dose, so it's not any cheaper than mRNA vaccines.