Public Health England (PHE). https://www.gov.uk/government/publications/sars-cov-2-lateral-flow-antigen-tests-evaluation-of-vui-20201201/sars-cov-2-lateral-flow-antigen-tests-evaluation-of-vui-20201201 Published December 23, 2020. Accessed June 11, 2021.
FINDDX. https://www.finddx.org/wp-content/uploads/2021/03/COVID-variants-report-FINAL-12MAR2021.pdf Published March 11, 2021. Accessed June 11, 2021.
FINDDX. https://www.finddx.org/covid-19/novel-variants/ Accessed 6 May 2021.
WHO. https://www.who.int/publications-detail-redirect/diagnostic-testing-for-sars-cov-2. Published September 11, 2020. Accessed 6 Jan 2021.
U.S. CDC. https://www.cdc.gov/coronavirus/2019-ncov/symptoms-testing/symptoms.html. Published February 22, 2021. Accessed June 11, 2021.