Ankara: The World Health Organization (WHO) has issued a stark warning that the world is at risk of experiencing another chikungunya epidemic akin to the 2005 outbreak if swift measures are not implemented to curb the virus's spread.

According to Anadolu Agency, the mosquito-borne chikungunya virus is currently affecting 119 countries, placing an estimated 5.6 billion people at risk. Diana Rojas Alvarez, WHO's team lead on arboviruses, highlighted during a UN briefing that the disease, though not widely recognized, can cause severe symptoms such as fever, rash, and intense joint pain that may persist for weeks or cause long-term disabilities in up to 40% of cases.

Since the beginning of 2025, significant outbreaks have been reported across Indian Ocean islands, notably La Reunion, Mayotte, and Mauritius. In La Reunion alone, it is estimated that one-third of the population has been infected. The virus is now extending its reach into regions like Madagascar, Somalia, and Kenya. South Asia is also witnessing ongoing outbreaks following India's epidemic in 2024, with Sri Lanka and Bangladesh reporting increasing case numbers. Europe has not been immune, with imported infections and local transmission noted in France and suspected cases in Italy.

Rojas cautioned that the current pattern is reminiscent of the 2004-2005 epidemic, urging immediate action to prevent a recurrence. She called on nations with Aedes mosquitoes to enhance their surveillance and control efforts. Although a decline in cases is anticipated with the arrival of winter in the Indian Ocean, she underscored the importance of early detection and quick response to mitigate health and economic impacts.

WHO is actively supporting countries by deploying experts, providing training for health workers, and aiding in vector control initiatives.