The COVID-19 Vaccine Opinions Study (VOS) is a follow-up to the Opinions and Lifestyle Survey (OPN). The survey is based on adults aged 16 and over in England (that consented to recontact from the OPN), specifically those who reported hesitancy towards the coronavirus (COVID-19) vaccine (over period 13 January to 8 August 2021). The primary aim of the survey is to: -Provide estimates of the prevalence of changing attitudes towards the coronavirus (COVID-19) vaccine -Identify the drivers behind this change in vaccination attitudes -Look at whether there are differences in changing attitudes amongst different groups of the population.