Increase of pertussis cases in the Vallès region, Catalonia, Spain, September 2023 to April 2024
Violeta Poltorak, Alba Cabré-Riera, Ferran Martínez-Botías, Eva Borrás, Laura Clotet Romero, María Rosa Sala, Mireia Jané Checa, Working Group for surveillance of pertussis in Vallès
Abstract
We describe a pertussis outbreak in the Vallès region of Catalonia, from September 2023 to April 2024. Incidence was high in children aged 10-14 years compared with previous outbreaks. Limited impact in newborns could be explained by the high vaccination coverage during pregnancy and at 11 months of age in 2022, at 85% and 94.1 %, respectively. A third booster vaccine dose during preadolescence should be considered and vaccination coverage in pregnant women be improved to control future outbreaks.
Topics & Concepts
PreadolescenceOutbreakMedicineVaccinationIncidence (geometry)Booster dosePediatricsEnvironmental healthVirologyImmunizationImmunologyBiologyPhysicsOpticsAntigenGeneticsBacterial Infections and VaccinesPneumonia and Respiratory InfectionsVaccine Coverage and Hesitancy