Quote Originally Posted by Moses View Post
booster of the same vaccine form scientific point of view may be less effective than using different vaccines (when we are talking about vaccines with average same effect and type - i.e. both are 4th or 3rd generation)...

so, if you took Moderna, then next is better to be Pfizer, and opposite: if you took Pfizer then next is better to be Moderna... on this way your immunity will be boosted stronger, but side effects like 1-2 day high temperature may appear more often and will be stronger as well...
I've now had 4 jabs , 3 Pfizer and 1 Moderna and suffered no after effects apart from a sore arm from the last one which was the moderna booster.