Khoo WH, Jackson K, Phetsouphanh C, Zaunders JJ, Alquicira-Hernandez J, Yazar S, Ruiz-Diaz S, Singh M, Dhenni R, Kyaw W, Tea F Full text COVID-19 Surveillance 2023 Clinical Immunology 2023;246:109209. doi: 10.1016/j.clim.2022.109209