[deanhills]

I personally think that we shouldn't mix the vaccines. We need to follow a straight line so we can assert that no surprise will arise in the future.

That would make great sense for sure. Not to mix the vaccines. In the meanwhile Governments should also let those know who have been vaccinated that they still need to take all the precautions. As there may be a small percentage of people where the vaccine does not work. There may also be people who are positive for Covid 19 and don't know it.