volume 146, issue 5, Pe20201368 2020
DOI: 10.1542/peds.2020-1368
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Angela P. Campbell, Constance Ogokeh, Joana Y. Lively, Mary A. Staat, Rangaraj Selvarangan, Natasha B. Halasa, Janet A. Englund, Julie A. Boom, Geoffrey A. Weinberg, John V. Williams, Monica McNeal, Christopher J. Harrison, Laura S. Stewart, Eileen J. Klein et al.

Abstract: BACKGROUND: Influenza A(H1N1)pdm09 viruses initially predominated during the US 2018-2019 season, with antigenically drifted influenza A(H3N2) viruses peaking later. We estimated vaccine effectiveness (VE) against laboratory-confirmed influenza-associated hospitalizations and emergency department (ED) visits among children in the New Vaccine Surveillance Network. METHODS: We tested children 6 months to 17 years with acute respiratory illness for influenza using molecular assays at 7 pediatric hospitals (ED pat…

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