Greek health authorities have confirmed 21 locally acquired cases of West Nile virus as of July 22, 2026. The majority of these infections, totaling 20 cases, have involved the central nervous system, indicating a significant clinical impact for those affected during the current surveillance period.
The rise in West Nile virus activity is occurring alongside broader environmental concerns regarding mosquito-borne illnesses. In other regions, such as Weld County in the United States, health officials have reported positive tests for the virus in mosquito populations. Experts note that expanding Culex mosquito seasons, driven by increasingly hot weather, contribute to the growing risk of transmission for both human and animal populations.
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