https://phys.org/news/2018-06-filthy-firstthe-common-disgust-disease.html

The researchers say these findings could help to target public health messaging, for example to encourage handwashing with soap or to counter the stigma associated with sickness.

The study, led by the London School of Hygiene & Tropical Medicine (LSHTM), surveyed more than 2,500 people online, listing 75 potentially 'disgusting' scenarios they might encounter, ranging from people with obvious signs of infection, pus-filled skin lesions and objects teeming with insects, to listening to sneezes and defecation in the open. Participants were asked to rate the strength of their disgust response to each scenario on a scale ranging from 'no disgust' to 'extreme disgust'.