@thetruthaddict @iron_bug maybe the russian vaccine worked differently (i think it was more like AZ?):

the mrna vaccines we used in the west use liquid nano particles to transport the mrna into cells, the mrna was replicated by genetically modified bacteria. the bacterial dna wasn't properly removed, so you have it encapsulated in the LNP as well.

the LNP likely can pass the barriers of the placenta, it can pass blood brain barrier as well afaik.