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. 2022 Aug 15;226(Suppl 2):S184–S194. doi: 10.1093/infdis/jiac155

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© The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 1. — Respiratory syncytial virus (RSV) (A) and bronchiolitis (B) hospitalization proportions and rates per 1000 live births by admission year, United States infants aged <1 year, National (Nationwide) Inpatient Sample, 2011–2019. To calculate proportions (%), the total number of infant hospitalizations in that year was used as the denominator. RSV and bronchiolitis were defined by International Classification of Diseases, Ninth and Tenth Revision (ICD-9 and ICD-10) diagnosis codes: RSV (ICD-9: 079.6, 466.11, 480.1; ICD-10: B97.4, J12.1, J20.5, J21.0); bronchiolitis (RSV codes plus unspecified bronchiolitis: ICD-9: 079.6, 466.11, 466.19, 480.1; ICD-10: B97.4, J12.1, J20.5, J21.0, J21.8, J21.9). Excludes newborn birth hospitalizations (ICD-9: V30.XX–V39.XX; ICD-10: Z38.XX).