The WHO has issued a warning about the imminent recurrence of a chikungunya fever epidemic, similar to the one in 2004–2005. Recent outbreaks have originated in the Indian Ocean region and are spreading to Europe and other continents. An estimated 5.6 billion people in 119 countries are at risk. There is growing concern about local transmission in Europe and the rise in imported cases.
Chikungunya is a viral disease transmitted by mosquitoes of the Aedes genus (especially Aedes aegypti and Aedes albopictus), found in many tropical and subtropical regions. It typically presents with sudden high fever and severe joint pain, which may last for weeks or even months. There is no specific antiviral treatment, but two vaccines have been authorized in some countries. Prevention relies on protection against mosquito bites (using repellents, wearing appropriate clothing, and sleeping under mosquito nets) and on controlling mosquito breeding sites. Vaccination may be considered for individuals at high risk of exposure. Epidemiological surveillance and early detection are key to preventing the geographic spread of the virus.
