I noticed the simultaneous injection issue as well, @Zack Vegas. What it doesn’t mention was if these vaccines were the virion types of vaccines or if they were mRNA type a minor point but since all the focus is currently on the problems with the COVID-19 mRNA. I would lean towards the traditional style, given that no other mRNA vaccines have been approved to my knowledge.
Given the high amount of facial bruising shown it looks like there was systemic distribution with some or one of these shots. But as you point out Zack there could be blending of the shots in some degree which was probably (highly unlikely)not studied .
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J.R.K