There are a few papers showing that the spike protein can cross the blood-brain barrier so maybe it's not even necessary for it to 'sneak in via the vagus nerve

There are a few papers showing that the spike protein can cross the blood-brain barrier so maybe it's not even necessary for it to 'sneak in via the vagus nerve' as mentioned in the article. https://pubmed.ncbi.nlm.nih.gov/35052867/ https://pubmed.ncbi.nlm.nih.gov/35052867/ https://pubmed.ncbi.nlm.nih.gov/36810757/ https://pubmed.ncbi.nlm.nih.gov/36810757/