WHO urges caution as West Nile virus spreads across Europe

The warning to strengthen mosquito surveillance comes as locally transmitted cases are reported in Greece, Italy, Spain, Romania, and North Macedonia.

WHO urges caution as West Nile virus spreads across Europe

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WHO urges caution as West Nile virus spreads across Europe

A mosquito feeds on a technician at the Salt Lake City Mosquito Abatement District on 26 July 2023.   -   Copyright © africanews Copyright 2023 The Associated Press. All rights reserved

By Rédaction Africanews with agencies

Last updated: 24/07 - 12:21

Health

As the West Nile virus transmission season gets underway, the World Health Organization is urging European countries to strengthen mosquito surveillance. The warning comes as the mosquito-borne infection spreads rapidly across Europe with locally transmitted cases reported in Greece, Italy, Spain, Romania, and North Macedonia. In Europe, most incidents of the virus in humans occur between July and September when mosquitos are active.

About 20 per cent of infections may cause West Nile fever which is characterised notably by headaches, fever, tiredness, body aches, pain, vomiting, and sometimes a rash. In severe cases, a person can develop the West Nile neuroinvasive disease that affects the nervous system and which can be life-threatening. Anyone who develops a high fever, rash, disorientation, tremors, or neck stiffness after a mosquito bite should see a doctor without delay. There is no vaccine or specific treatment for the virus, with care limited to managing symptoms. The WHO says while the virus is not a new threat, but the conditions that make it spread are changing rapidly. “Warmer temperatures and longer summers are giving mosquitoes more time and territory to transmit this virus,” says Dr Hans Henri P Kluge, WHO Regional Director for Europe. For most people the risk remains low, but anyone living in or travelling to an affected area should take basic steps to avoid mosquito bites and know the signs of severe illness. The organisation has urged countries to inform the public of protective measures including using a net, wearing clothing that covers most of the body, and making use of mosquito repellent. One should also limit time outdoors at dawn and dusk, when mosquitoes are most active. Mosquitoes acquire the West Nile virus by feeding on infected birds and pass it to humans and other animals through bites. No human-to-human transmission through everyday contact has ever been recorded.

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Article details
Published
July 24, 2026
Last updated
October 16, 2026
Written by
Wade Wilson
Category
Health and Foods
Reading time
3 min read
Views
1
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Written by

Wade Wilson

Platform administrator at Afridev Monitor. Oversees the newsroom platform, user access and publishing settings, keeping the site reliable and editorially consistent. Afridev Monitor tracks development, policy and business news across Africa.

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