Outbreak of autochthonous West Nile virus infection in Lazio region, Italy, July to August 2025: preliminary investigation
In July-18 August 2025, 171 autochthonous cases with West Nile virus (WNV) infection were confirmed in Lazio, Italy: four asymptomatic blood donors, 110 with WNV fever, 57 with neuroinvasive syndrome and nine deaths. WNV lineage 2 was detected in two neuroinvasive cases. Infection with WNV was confirmed in 28 horses, five crows and a <i>Culex pipiens</i> pool. We present the preliminary epidemiological and phylogenetic analysis of the outbreak and the public health measures taken within a One Health approach.
Authors
- Francesca Colavita (ORCID: https://orcid.org/0000-0003-0640-8667)
- Claudio De Liberato (ORCID: https://orcid.org/0000-0003-4027-1182)
- Angela Corpolongo (ORCID: https://orcid.org/0000-0001-6235-3934)
- Giuseppe Di Luzio
- Cristina Giambi (ORCID: https://orcid.org/0000-0002-6011-4806)
- Maria Beatrice Valli (ORCID: https://orcid.org/0000-0001-5022-5388)
- Roberto Giammattei
- Alessandro Zerbetto (ORCID: https://orcid.org/0000-0003-4341-680X)
- Fabrizio Maggi (ORCID: https://orcid.org/0000-0001-7489-5271)
- Emanuele Nicastri (ORCID: https://orcid.org/0000-0002-5606-8712)
- Maria Teresa Scicluna (ORCID: https://orcid.org/0000-0002-2266-6781)
- Stefania Vaglio
- M. Sala (ORCID: https://orcid.org/0000-0003-4876-2656)
- Federico Romiti (ORCID: https://orcid.org/0000-0001-7138-3924)
- Gabriella De Carli (ORCID: https://orcid.org/0000-0002-3972-8301)
- Paola Scognamiglio (ORCID: https://orcid.org/0000-0002-7938-6457)
- Enrico Girardi (ORCID: https://orcid.org/0000-0001-8182-5896)
- Andrea Siddu (ORCID: https://orcid.org/0000-0001-8212-3538)
- Francesco Vairo (ORCID: https://orcid.org/0000-0002-8375-7468)
- Alessandro Agresta (ORCID: https://orcid.org/0000-0001-8890-0342)
- Andrea Bongiovanni
- Cosmo Del Borgo (ORCID: https://orcid.org/0000-0002-7715-1232)
- Fabrizio Carletti
- Florindo Micarelli
- Ilaria Mussetto
- Valeria Ficarelli
Institutions
- Accademia di Belle Arti di Frosinone (IT)
- Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani (IT)
- Regional Health (US)
- Collaborative Group (United States) (US)
- Ospedale Santa Maria Goretti (IT)
- Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana (IT)
- Istituti di Ricovero e Cura a Carattere Scientifico (IT)
- Regione Lazio
- Sapienza University of Rome (IT)
Publication Details
- Journal
- Eurosurveillance
- Published
- 2025-09-04
- DOI
- https://doi.org/10.2807/1560-7917.es.2025.30.35.2500634
- Citations
- 6
- Primary Topic
- Mosquito-borne diseases and control
- Type
- article
- Field-Weighted Citation Impact
- 11.27