[tetraodonpuffer]

If you have been vaccinated in Canada with AstraZeneca you are not considered vaccinated at all in the US (not approved) and you might or might not be considered vaccinated in Europe depending on the manufacturer/lot of your shots (UK, vaxzevria, yes, India, covishield, no, USA, just called AstraZeneca, cannot find any information about it) and the European country in question (not all countries accept all AZ manufacturers as valid).

It is a fairly ridiculous situation and if you need to travel it's definitely an issue given a lot of countries are moving towards "green pass" type actions where unless you are "fully vaccinated" (with the approved vaccine) life will be very difficult for you.

There really should be a better solution about at least the most common vaccines being cross recognized everywhere and not used to artificially block people from moving (why should AZ manufactured in the UK be treated any differently from AZ manufactured in India)