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논문 기본 정보

자료유형
학술저널
저자정보
Choi Seong-Ho (Division of Infectious Diseases Department of Internal Medicine Chung-Ang University Hospital Seoul Korea.) Park Ji Young (Department of Pediatrics Chung-Ang University Hospital Seoul Korea.) Kweon Oh Joo (Department of Laboratory Medicine Chung-Ang University Gwangmyeong Hospital Gwangmyeong Korea.) Park Joung Ha (Division of Infectious Diseases Department of Internal Medicine Chung-Ang University Gwangmyeong Hospital Gwangmyeong Korea.) Kim Min-Chul (Division of Infectious Diseases Department of Internal Medicine Chung-Ang University Gwangmyeong Hospital Gwangmyeong Korea.) Lim Yaeji (Department of Applied Statistics Chung-Ang University Seoul Korea.) Chung Jin-Won (Division of Infectious Diseases Department of Internal Medicine Chung-Ang University Hospital Seoul Korea.)
저널정보
대한의학회 Journal of Korean Medical Science Journal of Korean Medical Science Vol.38 No.20
발행연도
2023.5
수록면
1 - 10 (10page)
DOI
10.3346/jkms.2023.38.e155

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Background: Before the omicron era, health care workers were usually vaccinated with either the primary 2-dose ChAdOx1 nCoV-19 (Oxford-AstraZeneca) series plus a booster dose of BNT162b2 (Pfizer-BioNTech) (CCB group) or the primary 2-dose BNT162b2 series plus a booster dose of BNT162b2 (BBB group) in Korea. Methods: The two groups were compared using quantification of the surrogate virus neutralization test for wild type severe acute respiratory syndrome coronavirus 2 (SVNT-WT), the omicron variant (SVNT-O), spike-specific IgG, and interferon-gamma (IFN-γ), as well as the omicron breakthrough infection cases. Results: There were 113 participants enrolled in the CCB group and 51 enrolled in the BBB group. Before and after booster vaccination, the median SVNT-WT and SVNT-O values were lower in the CCB (SVNT-WT [before-after]: 72.02–97.61%, SVNT-O: 15.18–42.29%) group than in the BBB group (SVNT-WT: 89.19–98.11%, SVNT-O: 23.58–68.56%; all P < 0.001). Although the median IgG concentrations were different between the CCB and BBB groups after the primary series (2.677 vs. 4.700 AU/mL, respectively, P < 0.001), they were not different between the two groups after the booster vaccination (7.246 vs. 7.979 AU/mL, respectively, P = 0.108). In addition, the median IFN-γ concentration was higher in the BBB group than in the CCB group (550.5 and 387.5 mIU/mL, respectively, P = 0.014). There was also a difference in the cumulative incidence curves over time (CCB group 50.0% vs. BBB group 41.8%; P = 0.045), indicating that breakthrough infection occurred faster in the CCB group. Conclusion: The cellular and humoral immune responses were low in the CCB group so that the breakthrough infection occurred faster in the CCB group than in the BBB group.

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