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For: Miyamoto S, Kuroda Y, Kanno T, Ueno A, Shiwa-Sudo N, Iwata-Yoshikawa N, Sakai Y, Nagata N, Arashiro T, Ainai A, Moriyama S, Kishida N, Watanabe S, Nojima K, Seki Y, Mizukami T, Hasegawa H, Ebihara H, Fukushi S, Takahashi Y, Maeda K, Suzuki T. Saturation time of exposure interval for cross-neutralization response to SARS-CoV-2: Implications for vaccine dose interval. iScience 2023;26:106694. [PMID: 37124417 PMCID: PMC10114312 DOI: 10.1016/j.isci.2023.106694] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/30/2023] [Accepted: 04/13/2023] [Indexed: 05/02/2023] Open

For:	Miyamoto S, Kuroda Y, Kanno T, Ueno A, Shiwa-Sudo N, Iwata-Yoshikawa N, Sakai Y, Nagata N, Arashiro T, Ainai A, Moriyama S, Kishida N, Watanabe S, Nojima K, Seki Y, Mizukami T, Hasegawa H, Ebihara H, Fukushi S, Takahashi Y, Maeda K, Suzuki T. Saturation time of exposure interval for cross-neutralization response to SARS-CoV-2: Implications for vaccine dose interval. iScience 2023;26:106694. [PMID: 37124417 PMCID: PMC10114312 DOI: 10.1016/j.isci.2023.106694] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/30/2023] [Accepted: 04/13/2023] [Indexed: 05/02/2023] Open

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Cited by Other Article(s)

Miyamoto S, Suzuki T. Infection-mediated immune response in SARS-CoV-2 breakthrough infection and implications for next-generation COVID-19 vaccine development. Vaccine 2024;42:1401-1406. [PMID: 38310015 DOI: 10.1016/j.vaccine.2024.01.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 01/23/2024] [Indexed: 02/05/2024]

Abstract

Post-vaccination infections, termed breakthrough infections, occur after the virus infection overcomes the vaccine-induced immune barrier. During the early stages of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron wave, high serum-neutralizing antibody titers against the Omicron variant were detected in individuals with breakthrough infections as well as those who received a third vaccine dose (i.e., booster recipients). Additionally, these cases indicated that Omicron antigens triggered an immune response that differed from that triggered by the vaccine strain before analysis of the effectiveness of new vaccines updated for the Omicron variants. Moreover, the magnitude and breadth of neutralizing antibody titers induced by breakthrough infections are correlated with the upper respiratory viral load at diagnosis and the duration between vaccination and infection, respectively. Unlike booster vaccine recipients, patients with breakthrough infections have varying durations between vaccination and infection. Accordingly, optimal booster vaccination intervals may be estimated based on the cross-neutralizing antibody response induced over time. Examination of breakthrough infection cases has provided valuable insights that could not be yielded by only examining vaccinated individuals alone. These insights include estimates of vaccine-induced immunity against SARS-CoV-2 variants and the various factors related to the clinical status. This review describes the immune response elicited by breakthrough infections; specifically, it discusses factors that affect the magnitude and breadth of serum antibody titers as well as the appropriate booster vaccination strategy. This review provides key aspects that could contribute to developing next-generation COVID-19 vaccines through breakthrough infection cases.

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