[steve86]

Are you talking about viruses getting through the blood-brain barrier? They certainly do:

Viral entry to the brain: There are a variety of means by which viruses enter the brain, primarily via neuronal transport or by crossing of one of several barriers to the central nervous system (CNS), including the BBB or the blood-cerebrospinal fluid barrier (choroid plexus).

[PA Engineer]

They supported their paper with a mouse model. ACE2 expression is far more pervasive in neuronal mouse protein expression than human.

I'll have my wife review it also (neurologist). She is my sanity check related to this and our current work. I think the evidence still points to cytokine expression, pulmonary failure, cerebral hypoxic and organ failure.

We saw numerous videos from China where end stage was seizure.

[Ozark Tom]

Olfactory nerve bulb leads directly to the brain.

https://onlinelibrary.wiley.com/doi/full/10.1002/path.4461