Coronavirus (COVID-19) Infection Survey, characteristics of people testing positive for COVID-19, UK - Office for National Statistics. (2021, November 3). Coronavirus (COVID-19) Infection Survey, Characteristics of People Testing Positive for COVID-19, UK: 3 November 2021. https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/conditionsanddiseases/bulletins/coronaviruscovid19infectionsurveycharacteristicsofpeopletestingpositiveforcovid19uk/3november2021#glossary

Coronavirus (COVID-19) Infection Survey, UK - Office for National Statistics. (n.d.). Retrieved February 13, 2022, from https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/conditionsanddiseases/bulletins/coronaviruscovid19infectionsurveypilot/11february2022

Nine in 10 parents in England approve of Covid jabs for children, survey finds. (2021, July 1). The Guardian. http://www.theguardian.com/society/2021/jul/01/not-enough-evidence-to-back-covid-jabs-for-children-says-uk-expert