Well I'm basing it off of the 4 vaccines that are approved right now, Pfizer, Moderna, AZ and J&J. Two of them need to be kept in freezing temperatures those haven't had blood clot issues. Yet the two that don't need to be kept in freezing temperature have had blood clots related issues. Definitely seems fishy even if you say not so much, kind of hard to ignore that with the ones that are kept in cold temperatures.