For additional context, the author is JB Classen. From his Wikipedia page: > A widely-reposted 2021 Facebook post claiming that the mRNA vaccines against COVID

For additional context, the author is JB Classen. From his Wikipedia page: > A widely-reposted 2021 Facebook post claiming that the mRNA vaccines against COVID-19 could cause prion diseases was based on a paper by Classen. The paper was published in Microbiology and Infectious Diseases, whose publisher, Scivision Publishers, is included in Beall's list of publishers of predatory journals. Vincent Racaniello, professor of microbiology and immunology at Columbia University, described the claim as "completely wrong". https://en.wikipedia.org/wiki/J._Bart_Classen https://en.wikipedia.org/wiki/J._Bart_Classen