Chennai, May 29:
The city is witnessing a steady rise in chickenpox cases this summer, with children being the most affected group as temperatures continue to soar. Health data shows that Chennai alone recorded around 476 cases between January and March 2026, the highest in Tamil Nadu, with officials warning that the numbers could increase further in the coming weeks.
Doctors say the surge is largely seasonal, driven by heat, humidity, and close contact among children, especially during holidays and indoor gatherings. “It is a seasonal virus and usually occurs with a rise in temperature,” a public health official noted, adding that the current early spike is higher than in previous years.
Chickenpox, caused by the varicella-zoster virus, spreads rapidly through respiratory droplets and direct contact with infected skin. It typically begins with fever, fatigue, and body pain, followed by itchy rashes that turn into fluid-filled blisters. Medical experts point out that children, particularly those without prior immunity, are the most vulnerable to infection.
Health authorities have advised parents not to ignore early symptoms. “People with fever and rashes should isolate immediately and seek medical care,” experts stress, highlighting the highly contagious nature of the disease.
To stay safe, doctors recommend simple precautions such as isolating infected children until blisters dry, maintaining personal hygiene, avoiding sharing clothes and utensils, and keeping children well-hydrated during the heat. Wearing loose cotton clothing and preventing scratching can help reduce discomfort and avoid secondary infections. Vaccination, where available, is also considered an effective preventive measure.
With peak summer still ahead, health officials urge vigilance among parents and schools, stating that early detection, isolation, and proper care can significantly reduce the spread of chickenpox in the city.