[ransom1538]

prions "Oral manifestations are rare. Evidence suggests that the risk of transmission and acquisition of a prion infection as a result of dental treatment is rare, if appropriate infection control measures are maintained."

https://www.sciencedirect.com/science/article/abs/pii/S00028...

nose picking https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10669446/