Chikungunya Surge: Kerala Faces Rising Cases

Kerala is witnessing a notable increase in chikungunya cases, with 105 confirmed and 62 probable infections reported by August 4, primarily in Thiruvananthapuram. This marks a resurgence after major epidemics in 2006-2007 and an outbreak in 2019-20.

Public health experts warn that the actual case numbers could be significantly higher, as chikungunya often doesn't lead to hospitalization or extensive testing. The rise in both dengue and chikungunya cases indicates a significant increase in the Aedes mosquito population, the common vector for both diseases.

The World Health Organization had issued a global alert in July 2025 about a potential resurgence of chikungunya, reminiscent of the 2004-05 epidemic. While the threat perception was later modified to 'moderate', the WHO cautioned that localized surges could still overwhelm health systems and pose severe risks to vulnerable populations like pregnant women and newborns.

Experts point out that the virus is highly immunogenic, but a generation has grown up without prior exposure, making the younger population susceptible. The disease, characterized by fever, joint pain, and rashes, can cause long-term morbidity, as seen in the 2007 epidemic which had immense economic and social repercussions.