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. 2019 Aug 1;24(31):1800488. doi: 10.2807/1560-7917.ES.2019.24.31.1800488

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Antibody seroprevalence levels by age group against (A) A/Hong Kong/4801/2014 virus either grown in tissue culture or propagated in egg or (B) B/Yamagata and B/Victoria viruses, England, United Kingdom, 2016 and 2017 (n = 1,741)