Clinical Phenotypes and Molecular Characteristics of Respiratory Syncytial Virus in Adults: A Monocentric Prospective Study Between 2019 and 2022.

Bay, Pierre; Loegel, Cloé; Ly, Arnaud; Soulier, Alexandre; N'Debi, Mélissa; Seng, Sarah; Kassasseya, Christian; Rodriguez, Christophe et al. · J Infect Dis · 2024

prospective_cohort · Level II

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Abstract

Respiratory syncytial virus (RSV) infection is a major cause of pneumonia in adults. Little is known on the viral genetic diversity and the associated clinical phenotypes in this population. This single-center prospective cohort study included RSV-infected patients hospitalized between January 2019 and December 2022. Of 100 patients, including 41 with severe infection, 72 were infected with RSV-B. RSV genome sequencing showed no clustering according to severity. Patients infected with RSV-B with risk factors for severe pneumonia had significantly higher fusion protein diversity scores. No amino acid substitutions conferring resistance to nirsevimab were detected.

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