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Volume 32, Number 10—October 2026

Dispatch

Emergence of Macrolide-Resistant Bordetella pertussis, Peru, 2025

Eduardo Juscamayta-LópezComments to Author , Faviola Valdivia, Carmen Rodríguez-Cueva, Helen Horna, Yaneth Quispe, María Pía Soto, Segundo Torres, Victor Fiestas Solórzano, Martin Yagui, Vlademir Vicente Cantarelli, Efrain Montilla-Escudero, Víctor Silva, and Ana Raquel Da Costa
Author affiliation: Instituto Nacional de Salud, Lima, Peru (E. Juscamayta-López, F. Valdivia, C. Rodríguez-Cueva, H. Horna, Y. Quispe, M. Pía Soto, S. Torres, V. Fiestas Solórzano, M. Yagui); American Society for Microbiology, Washington DC, USA (V. Vicente Cantarelli, E. Montilla-Escudero, V. Silva, A. Raquel Da Costa).

Main Article

Figure 1

Geographic distribution of confirmed pertussis cases and MRBP cases in Peru, 2025. Regional shading shows cumulative confirmed pertussis cases since epidemiologic week 53 of 2025; darker blue indicates higher case counts. Purple circles indicate regions where patients carrying B. pertussis strains with the macrolide resistance–associated A2047G mutation were detected. MRBP, macrolide-resistant Bordetella pertussis.

Figure 1. Geographic distribution of confirmed pertussis cases and MRBP cases in Peru, 2025. Regional shading shows cumulative confirmed pertussis cases since epidemiologic week 53 of 2025; darker blue indicates higher case counts. Purple circles indicate regions where patients carrying B. pertussis strains with the macrolide resistance–associated A2047G mutation were detected. MRBP, macrolide-resistant Bordetella pertussis.

Main Article

Page created: July 21, 2026
Page updated: September 16, 2026
Page reviewed: September 16, 2026
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