Proximity Contacts and Self-perceived Vulnerability to Diseases Among High School Students - A Preliminary Study.

In recent years there has been much research regarding the extent to which behavioural immune system (BIS; behavioural responses that evolved to detect and avoid pathogens) is related to a variation in social profile and personality traits such as extroversion among individuals. However, most research on the relationship between BIS and sociality is based on short-term experimental studies and thus little is known about the degree to which BIS is related to the actual frequency of day-to-day proximity contacts. We used data obtained from secondary students (n = 84, age 16-19yo, n schools/classes = 3) to determine whether the variation in BIS values is associated with the frequency of proximity contacts. Proximity data were derived from sensors registering the proximity of other classmates within a 2 m radius. Students belonging to the same class were wearing proximity sensors within the school environment for the period of 4 weeks. BIS activity was assessed using a total score of Perceived Vulnerability to Diseases (PVD) questionnaire. Our findings, based on real-world face-to-face proximity patterns, do not support the assertions of previous studies suggesting that BIS activation, as reflected in higher PVD values, is associated with a lower rate of social interactions. However, this does not rule out the existence of the relationship under investigation. Future studies should include larger samples and analyses of other measures of integration within close social networks.