Key points

Chikungunya, dengue

• No local transmission in Île-de-France in 2025, as of now.

• 162 imported cases of dengue

• 164 imported cases of chikungunya

West Nile virus infections

• Three confirmed cases of locally acquired West Nile virus infection in humans were detected in Île-de-France in the departments of Seine-Saint-Denis and Val-d’Oise. This marks the first identification of local vector-borne transmission of West Nile virus in Île-de-France. In addition, two equine cases testing positive for West Nile virus have been identified in Yvelines. These findings suggest more widespread circulation of the virus in Île-de-France.

COVID-19

• The number of emergency room visits was decreasing, and the number of cases handled by SOS Médecins for suspected COVID-19 remained stable.

Poisoning

• Several sources report an increase in Île-de-France in reported cases of poisoning from the product SNIPER 1000 EC DDVP® (dichlorvos), a liquid insecticide banned in France since 2013 due to its danger to health and the environment. This product, which is available illegally in some stores, is extremely toxic if inhaled or if it comes into contact with the skin and can be fatal if ingested (organophosphate poisoning and cholinergic syndrome).