If anyone is even paying attention anymore, this is why the viral load in the vaxxed, concentrated in the sinuses, is a HUGE deal.
Spike proteins AND intact virus located in the sinuses is both able to compromise the BBB as well as infiltrate the CNS causing neuroinflammation, degeneration, loss of cognitive ability, and progressive brain disorders. It would also cause massive personality changes, perhaps uncontrolled rage and violence (speculation on my part, but the sinuses lead almost directly to the Amygdala)
" On the other hand, it is known that human coronaviruses can penetrate the CNS through the olfactory nerve and olfactory bulb neuroepithelium [28]. Then, SARS-CoV-2 could spread via retrograde neuronal mechanism where it invades the peripheral neurons and ultimately invades the CNS by spreading through the connected network of neuronal transport machinery [29]. At the CNS, pro-inflammatory cytokines, such as MMP-9, could induce neuroinflammation and neuronal damage."
https://www.qeios.com/read/KO4C77