The influence of risk perceptions on close contact frequency during the SARS-CoV-2 pandemic.

James Wambua; Lisa Hermans; Pietro Coletti; Frederik Verelst; Lander Willem; Christopher I Jarvis ORCID logo; Amy Gimma; Kerry LM Wong; Adrien Lajot; Stefaan Demarest; +4 more... W John Edmunds ORCID logo; Christel Faes; Philippe Beutels; Niel Hens; (2022) The influence of risk perceptions on close contact frequency during the SARS-CoV-2 pandemic. Scientific Reports, 12 (1). 5192-. ISSN 2045-2322 DOI: 10.1038/s41598-022-09037-8
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Human behaviour is known to be crucial in the propagation of infectious diseases through respiratory or close-contact routes like the current SARS-CoV-2 virus. Intervention measures implemented to curb the spread of the virus mainly aim at limiting the number of close contacts, until vaccine roll-out is complete. Our main objective was to assess the relationships between SARS-CoV-2 perceptions and social contact behaviour in Belgium. Understanding these relationships is crucial to maximize interventions' effectiveness, e.g. by tailoring public health communication campaigns. In this study, we surveyed a representative sample of adults in Belgium in two longitudinal surveys (survey 1 in April 2020 to August 2020, and survey 2 in November 2020 to April 2021). Generalized linear mixed effects models were used to analyse the two surveys. Participants with low and neutral perceptions on perceived severity made a significantly higher number of social contacts as compared to participants with high levels of perceived severity after controlling for other variables. Our results highlight the key role of perceived severity on social contact behaviour during a pandemic. Nevertheless, additional research is required to investigate the impact of public health communication on severity of COVID-19 in terms of changes in social contact behaviour.


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