Probably no surprise if you’ve read the book, but new research by Pavel S. Blagov Ph.D. which is about to be published in the journal Social Psychology and Personality Science suggests that “people who scored higher on the psychopathic subtraits of meanness and disinhibition tended to show less interest in social distancing and hygiene”. (source)
Blagov is an Associate Professor of Psychology at Whitman College.