Foreign vaccine-seekers flock to Serbia for Covid-19 shots

That's an interesting twist on the facts, since I think none of them have met those: that's why they are all getting Emergency Use licenses vs the regular licenses when they really meet "all the safety and clinical study requirements".

Certainly, the Sinopharm and Sputnik V have less data available publicly, but everything points that they are not unreasonably unsafe (after all, almost 0.5M people have been revaccinated with Sinopharm vaccine in Serbia), and they are using the tried-and-true methods of vaccine development in use for dozens of years. Basically, we are talking about simply different levels of "unknown" vs "totally safe"/"unsafe".

As far as efficacy, they all seem to provide at least a decent amount of protection against hard illness after getting infected with coronavirus, which is what I hope most people care about at this point of the pandemic.

In Serbia everyone is free to restrict what vaccine they want to get, and many went for the Chinese one because of it being readily available (I had it in my list too even though I've gotten AstraZeneca one because I was low-priority thus was one of the last to be vaccinated who signed up for it, and it was about the time AZ was getting all the negative press so nobody would take it).