tetano
Editor, Senior Moderator
Osong Public Health Res Perspect
. 2022 Oct;13(5):377-381.
doi: 10.24171/j.phrp.2022.0209. Epub 2022 Oct 14.
Presumed population immunity to SARS-CoV-2 in South Korea, April 2022
Eun Jung Jang[SUP] 1 [/SUP], Young June Choe[SUP] 2 [/SUP], Seung Ah Choe[SUP] 3 [/SUP], Yoo-Yeon Kim[SUP] 1 [/SUP], Ryu Kyung Kim[SUP] 1 [/SUP], Jia Kim[SUP] 1 [/SUP], Do Sang Lim[SUP] 1 [/SUP], Ju Hee Lee[SUP] 1 [/SUP], Seonju Yi[SUP] 1 [/SUP], Sangwon Lee[SUP] 1 [/SUP], Young-Joon Park[SUP] 1 [/SUP]
Affiliations
Abstract
Objectives: We estimated the overall and age-specific percentages of the Korean population with presumed immunity against severe acute respiratory syndrome coronavirus 2 (SARSCoV-2) as of April 2022 using the national registry.
Methods: We used the national coronavirus disease 2019 (COVID-19) infection and vaccination registry from South Korea, as described to define individuals with a previous history of COVID-19 infection, vaccination, or both, as persons with presumed immunity.
Results: Of a total of 53,304,627 observed persons, 24.4% had vaccination and infection, 58.1% had vaccination and no infection, 7.6% had infection and no vaccination, and 9.9% had no immunity. The SARS-CoV-2 Omicron variant emerged at a time when the presumed population immunity ranged from 80% to 85%; however, nearly half of the children were presumed to have no immunity.
Conclusion: We report a gap in population immunity, with lower presumed protection in children than in adults. The approach presented in this work can provide valuable informed tools to assist vaccine policy-making at a national level.
Keywords: COVID-19; Immunity; Population; SARS-CoV-2; Vaccines.
. 2022 Oct;13(5):377-381.
doi: 10.24171/j.phrp.2022.0209. Epub 2022 Oct 14.
Presumed population immunity to SARS-CoV-2 in South Korea, April 2022
Eun Jung Jang[SUP] 1 [/SUP], Young June Choe[SUP] 2 [/SUP], Seung Ah Choe[SUP] 3 [/SUP], Yoo-Yeon Kim[SUP] 1 [/SUP], Ryu Kyung Kim[SUP] 1 [/SUP], Jia Kim[SUP] 1 [/SUP], Do Sang Lim[SUP] 1 [/SUP], Ju Hee Lee[SUP] 1 [/SUP], Seonju Yi[SUP] 1 [/SUP], Sangwon Lee[SUP] 1 [/SUP], Young-Joon Park[SUP] 1 [/SUP]
Affiliations
- PMID: 36328242
- DOI: 10.24171/j.phrp.2022.0209
Abstract
Objectives: We estimated the overall and age-specific percentages of the Korean population with presumed immunity against severe acute respiratory syndrome coronavirus 2 (SARSCoV-2) as of April 2022 using the national registry.
Methods: We used the national coronavirus disease 2019 (COVID-19) infection and vaccination registry from South Korea, as described to define individuals with a previous history of COVID-19 infection, vaccination, or both, as persons with presumed immunity.
Results: Of a total of 53,304,627 observed persons, 24.4% had vaccination and infection, 58.1% had vaccination and no infection, 7.6% had infection and no vaccination, and 9.9% had no immunity. The SARS-CoV-2 Omicron variant emerged at a time when the presumed population immunity ranged from 80% to 85%; however, nearly half of the children were presumed to have no immunity.
Conclusion: We report a gap in population immunity, with lower presumed protection in children than in adults. The approach presented in this work can provide valuable informed tools to assist vaccine policy-making at a national level.
Keywords: COVID-19; Immunity; Population; SARS-CoV-2; Vaccines.