Perceived Vulnerability to Disease Predicts Restrictive Policy Supports in Response to the 2019-nCoV Outbreak
Diseases threaten human survival. As such, humans engage in behavioral avoidance to prevent contact with potential carriers of pathogens, such as reduced sociability at the interpersonal level and endorsement of strict immigration policies at the intergroup level. This research examines chronic concerns about infectious diseases (using the Perceived Vulnerability to Disease questionnaire) and travel ban supports in response to the 2019-nCoV outbreak in January 2020. Two studies were conducted in the United States (Study 1; N = 241) and Singapore (Study 2; N = 138). For Americans who scored higher on the Perceived Infectability subscale, they were more likely to endorse travel bans on people coming from China and all of Asia. For Singaporeans who reported greater Germ Aversion, they were more supportive of travel bans on people from both China and their Malaysian neighbor. Saliency of the outbreak may account for differences in subscale predictors between Americans and Singaporeans.