i have read UK has given permission to mix the vaccines..one for first dose and perhaps another for second. I think that sounds insane but maybe not. I am hoping they will find a way to prefill syringes..oh they know how to do that..reduce time spent fiddling around and human error. I am starting to wonder if injections could be done by robot. Stick your arm into a sleeve like a blood pressure thing at the pharmacy...robot jabs. I mean, we do incredible eye surgery with robotic assistance..surely we could jab an arm on at least young healthy people...