Using the Health Belief Model to design a questionnaire aimed at measuring people’s perceptions regarding COVID-19 immunity certificates

The present short communication paper describes the methodological approach of applying the Health Belief Model to the use COVID-19 immunity certificates in the UK. We designed an online survey including an adaptation of the following Health Belief Model constructs: perceived COVID-19 susceptibility, perceived COVID-19 severity, perceived benefits of using immunity certificates, perceived barriers from using immunity certificates, perceived severity of not using immunity certificates, and perceived vaccination views. The online cross-sectional survey conducted on the 3 ^rd of August 2021 gathered responses from 534 participants aged 18 and older, representative of the UK population in terms of gender, age, and ethnicity.