The Pan American Health Organization (PAHO) has raised an alarm regarding the sustained increase in chikungunya cases across several countries in the Americas since the end of 2025. This resurgence is particularly concerning in areas where the disease had not been reported for years. The organization clarifies that the outbreak correlates with the presence of Aedes aegypti mosquitoes in the affected regions, which significantly contributes to the spread of the virus.

Additionally, PAHO emphasizes that the current situation is exacerbated by extreme temperatures that facilitate the resurgence of the virus, coupled with the presence of Asian and African genotypes. These factors make it imperative to maintain vigilant surveillance and prompt responses to contain the situation effectively. The recent notifications from 2025 show a total of 502,264 cases worldwide, with confirmed reports accounting for 208,335 cases and 186 deaths reported across 41 countries and territories.

In the Americas alone, a staggering 313,132 cases, of which 113,926 were confirmed, were reported, alongside 170 deaths attributed to this disease, which shares similarities with other mosquito-borne viruses. This situation highlights the need for greater public health measures to control mosquito populations and prevent further outbreaks, as chikungunya can lead to debilitating symptoms and significant health impacts on affected populations.