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Volume 32, Number 8—August 2026

Research

Epidemiologic, Entomologic, and Virologic Findings during Reemergence of Western Equine Encephalitis Virus, Argentina

Lorena Spinsanti1, Cintia Fabbri1, Ana Piskorz, Victoria Luppo, Gonzalo Castro, Adrián Farías, Mauricio Beranek, Gabriel Barco, Mariel Feroci, Cintia Barulli, Jorge García, Anabel Sinchi, Anabella Fantilli, María Belén Pisano, Agostina Pierdomenico, Andrea Marcos, Rodrigo Balzano, Facundo Cuba, Sol Haim, Florencia Mallou, Carolina Paladino, Tomás Poklepovich, Liliana Luque, Brenda Konigheim, Juan Javier Aguilar, Jimena Renga, Maria Alejandra Morales2, and Adrián Díaz2
Author affiliation: National University of Córdoba, Córdoba, Argentina (L. Spinsanti, G. Castro, A. Farías, M. Beranek, G. Barco, A. Fantilli, M.B. Pisano, B. Konigheim, J.J. Aguilar, A. Díaz); National Administration of Laboratories and Health Institutes, Buenos Aires, Argentina (C. Fabbri, V. Luppo, M. Feroci, C. Barulli, J. García, A. Sinchi, F. Cuba, S. Haim, F. Mallou, C. Paladino, T. Poklepovich, M.A. Morales); National Service of Agrifood Health and Quality (SENASA), Buenos Aires (A. Piskorz, A. Pierdomenico, A. Marcos, R. Balzano, J. Renga); Ministry of Health of Córdoba Province, Córdoba (G. Castro, L. Luque); National Scientific and Technical Research Council (CONICET), Buenos Aires (G. Barco, M.B. Pisano, B. Konigheim, A. Diaz)

Main Article

Figure 2

Spatiotemporal distribution of cases in study of epidemiologic, entomologic, and virologic findings during reemergence of western equine encephalitis virus, Argentina, 2023–2024. A) Spatial distribution of cases by EW. The color gradient indicates the progression timeline, ranging from earliest (dark red) to most recent (light red) cases. B) Number of reported cases per epidemiologic week. C) Geographic distribution of cases by province. EW, epidemiologic week.

Figure 2. Spatiotemporal distribution of cases in study of epidemiologic, entomologic, and virologic findings during reemergence of western equine encephalitis virus, Argentina, 2023–2024. A) Spatial distribution of cases by EW. The color gradient indicates the progression timeline, ranging from earliest (dark red) to most recent (light red) cases. B) Number of reported cases per epidemiologic week. C) Geographic distribution of cases by province. EW, epidemiologic week.

Main Article

1These authors contributed equally to this article.

2These senior authors contributed equally to this article.

Page created: June 25, 2026
Page updated: July 27, 2026
Page reviewed: July 27, 2026
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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