Israel Reports First West Nile Virus Case in 2026 Summer Season

The Israeli Ministry of Health and Ministry of Environmental Protection announced the first confirmed case of West Nile virus in Israel for the 2026 summer season. The patient, a resident of Tel Aviv, was diagnosed recently, marking the initial detection of the disease this year. In response, the Ministry of Environmental Protection has instructed the relevant local authority to intensify prevention, monitoring, mosquito control, and public awareness efforts.

Professor Sigal Sadetzki, head of the Public Health Division at the Ministry of Health, explained that West Nile virus is transmitted to humans through mosquito bites from mosquitoes that feed on infected birds. While most cases are mild or asymptomatic, severe symptoms such as encephalitis or meningitis can occur in rare instances. Dr. Shay Reicher, director of the Pests and Pest Control Department at the Ministry of Environmental Protection, emphasized ongoing year-round mosquito surveillance, with increased activity during the mosquito season from June to November.

Despite extensive monitoring involving thousands of larval inspections and hundreds of adult mosquito captures tested by the Ministry of Health laboratories, no mosquitoes carrying the virus had been found this season until now. The warm and humid summer conditions increase mosquito breeding risks, especially in standing water. Local authorities are responsible for removing public health nuisances related to pests, but the public is urged to assist by eliminating standing water sources such as buckets, plant trays, old tires, gutters, ornamental pools, and barrels.

Additional preventive measures recommended include using mosquito repellents, installing window and door screens, wearing long light-colored clothing during dusk hours, using fans to deter mosquitoes, and reporting mosquito nuisances or standing water in public areas to the local authority hotline *106. These combined efforts aim to reduce mosquito populations and minimize the risk of virus transmission to humans.