Health authorities have confirmed a new case of West Nile virus in the Amsterdam region following reports by local broadcaster AT5. Regional public health service GGD Amsterdam acknowledged the infection but declined to comment on recipient identity or medical specifics due to privacy regulations. According to local reporting, the patient contracted the virus within the Netherlands and subsequently developed meningitis.
Fatalities and hospitalisations spark surveillance
The new diagnosis follows recent confirmation that a Dutch resident in Utrecht died from a locally acquired West Nile virus infection. Another woman from Drenthe died from the virus in early August. Meanwhile, one additional patient remains hospitalized, and the National Institute for Public Health and the Environment (RIVM) suspects further undetected cases exist.
Local transmission confirmed by health authorities
In mid-August, officials detected the virus in a local blood donor who had not traveled abroad recently. The RIVM maintains that overall infection risk within the country remains very low. Prior to this case, health officials recorded three locally acquired West Nile virus infections across the Netherlands in 2026.
Mosquitoes drive transmission between birds and humans
Birds carry the West Nile virus, while common house mosquitoes transmit it to humans and horses. Humans cannot transmit the virus to others. While 80 per cent of infected individuals show no symptoms, roughly 19 per cent develop West Nile fever with flu-like symptoms. Neurological complications occur in one per cent of cases, with severe infections proving fatal for a small fraction of patients.
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