Comment by schrodingersCat

This article is an ouroboros of self-citation and speculation. The lead author, McCullough, is a known proponent of Hydroychloroquine, denier of asymptomatic spread of covid, and a paid, invited speaker at right wing and anti-vaxx conferences (see his Wikipedia for citations: https://en.wikipedia.org/wiki/Peter_A._McCullough). This "research" paper offers lots of speculation, and very little data. The number of times these authors made unfounded and spurious confusion spurious is too high to mention all of them. I'll call out one example -"There were 3,657 cases of anosmia (loss of smell), clearly demonstrating that the SARS-CoV-2 spike glycoprotein from the injec- tion in the arm was reaching the olfactory nerve." None of the authors are qualified to make this claim, the authors made no attempt to rule out confounding factors like prior Covid-19 infection, and no direct evidence for thistle claim was presented. Tl;Dr - the article is bad science and should be ignored