A person has died after contracting West Nile virus locally in the Netherlands, marking the first fatality linked to the illness in the country this year [1, 2, 3]. The deceased was treated in a hospital in the Dutch province of Utrecht [3].
Dutch health authorities reported that two other patients infected with West Nile virus remain hospitalized [3]. Since 2020, the Netherlands has recorded three cases believed to be locally contracted, including the current three in 2026 [1, 2, 3]. The virus was first detected in 2020 in a blood donor who had not traveled abroad, indicating local transmission [3].
West Nile virus spreads primarily through mosquito bites and can cause severe, life-threatening illness in approximately 1 in 150 infected individuals [1]. About 80% of infected people show no symptoms, 19% experience flu-like symptoms, and only 1% develop neurological symptoms such as encephalitis or meningitis [3].
Cases of West Nile virus are increasing across Europe, with outbreaks reported in Greece, Italy, Austria, France, Germany, Spain, and North Macedonia [1, 2]. North Macedonia recently reported its fifth West Nile virus death of the year on August 22, 2026 [2]. The World Health Organization has urged European countries to enhance mosquito surveillance to better track the virus's spread [2].
The Netherlands’ National Institute for Public Health and the Environment (RIVM) emphasized that infection remains very unlikely for the general Dutch population. "It is still very unlikely for people to be infected with the virus in the Netherlands," the agency said [1].
Health authorities continue to monitor the situation closely as mosquito activity peaks this summer season. Further updates will follow as cases develop.
