• West Nile virus outbreaks have been reported in recent years in Kerala, Assam, West Bengal, and Tamil Nadu in India.

• The West Nile virus causes a self-limiting illness presenting as fever, headache, and nausea.

• <1% of the disease presents as acute encephalitis syndrome (AES) or acute flaccid paralysis (AFP).

• The bite of the Culex mosquito spreads the virus, and the disease usually affects adults.

• Since May 2024, 6 confirmed cases, 1 death, and 1 suspected case of West Nile virus have been reported at the IDSP by the State Surveillance Unit, Directorate of Health Services, Kerala.

• A total of 7 cases have been reported this year from the districts of Kozhikode, Malappuram, and Thrissur.

• The District Vector Control Units have stepped up the vector control measures, mosquito sample testing, and awareness activities.

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