Research Letter

Nirsevimab and a Community Recall-Based Immunization Strategy for Child Bronchiolitis Prevention

JAMA Network Open 10.1001/jamanetworkopen.2026.13571

May 19, 2026 at 11:00 AM EDT

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This cohort study examines the association of a recall-based nirsevimab immunization strategy with the incidence of clinically diagnosed all-cause bronchiolitis during the 2024-2025 respiratory syncytial virus season in Italy.

Corresponding Author: Riccardo Boracchini, PhD, Division of Biostatistics, Epidemiology and Public Health, Department of Statistics and Quantitative Methods, University of Milan-Bicocca, Via Bicocca degli Arcimboldi 8, 20126 Milan, Italy (riccardo.boracchini@unimib.it).

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