Published in
Oxford University Press, Journal of the Pediatric Infectious Diseases Society, 12(12), p. 634-637, 2023
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Incidence of Omicron Variant Reinfection and Reduction of Reinfection Risk After Coronavirus Disease 2019 Vaccination in Children
Journal article published in 2023 by
Tatsuki Ikuse 
,
Yuta Aizawa ,
Satoshi Hasegawa,
Masashi Takahashi,
Takanori Hayashi,
Miyako Kon,
Tsutomu Tamura,
Haruki Matsumoto,
Akihiko Saitoh
,
Yuta Aizawa ,
Satoshi Hasegawa,
Masashi Takahashi,
Takanori Hayashi,
Miyako Kon,
Tsutomu Tamura,
Haruki Matsumoto,
Akihiko Saitoh
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Abstract
Abstract Data are limited on the incidence of coronavirus disease 2019 (COVID-19) reinfection in children. This population-based cohort study in Niigata, Japan from January to November 2022 demonstrated the incidence of reinfection was 1337/48 099 (2.8%), and the hazard ratio for reinfection in vaccinated children was 0.29 (95% confidence interval, 0.20–0.40).