blockchain technology has indeed become a modern technology and will be very useful to be used as a main ledger without fear of losing any data entered. However for some reason some countries are still not using it. There is still no mass adoption of the real use of blockchain. The application of the Vacsin Passport is a pretty good innovation, but not everyone is familiar with blockchain technology and it certainly looks unfamiliar.

blockchain innovation in medicine has been around for a few years, but its real application has yet to be realized, only a beta project that is not developing.