1. World Health Organization (WHO). Weekly epidemiological update on COVID-19 - 3 August 2023. Edition 154 [Internet]. WHO; 2022 [cited 2023 Aug 3]. Available from: https://www.who.int/publications/m/item/weekly-epidemiological-update-on-covid-19---3-august-2023
2. ncov.kdca.go.kr [Internet]. Korea Disease Control and Prevention Agency [cited 2023 Aug 10]. Available from: https://ncov.kdca.go.kr/bdBoardList_Real.do
3. Evaluation of possible COVID-19 reinfection in children: A multicenter clinical study
4. Severity and Outcomes of SARS-CoV-2 Reinfection Compared with Primary Infection: A Systematic Review and Meta-Analysis
5. Park AK, Kim IH, Rhee JE, et al. Reinfection of COVID-19 in the Republic of Korea. Public Health Wkly Rep 2021;14:1770-5.