Antivaccine nonsense Bad science Medicine Pseudoscience Quackery Skepticism/critical thinking

COVID-19 vaccines, prion disease, and Alzheimer’s: Another old antivax lie is new again

Antivax immunologist J. Bart Classen recently published a paper claiming that mRNA-based COVID-19 vaccines can cause prion disease leading to neurodegenerative diseases like Alzheimer’s dementia. What are prions, and can these vaccines cause prion disease? Unsurprisingly, Classen is just wildly speculating based on highly implausible biology.