On July 21, Gujarat had reported 12 confirmed cases of Chandipura virus infection. By August 3, that figure had nearly tripled. Health Minister Praful Pansheriya said that of the 184 suspected cases reported from different districts among children below 15 years of age, 22 had died, while test results for 11 suspected cases were still awaited.
The virus responsible for these deaths is unfamiliar to many Indians, but Chandipura has been a recurring threat during Gujarat's monsoon season for nearly two decades. Chandipura vesiculovirus (CHPV) is a rare, insect-borne pathogen that can transform what initially appears to be an ordinary fever into life-threatening inflammation of the brain within just a few days. There is currently no approved vaccine or specific antiviral treatment for the infection. This monsoon, once again, children in Gujarat are bearing the brunt of the outbreak.
A Fever That Can Progress RapidlyChandipura virus infection generally begins with fever and flu-like symptoms but can quickly progress to acute encephalitis, a serious condition involving inflammation of the brain. Doctors describe the progression as remarkably rapid. Although the infection is uncommon, its aggressive nature and ability to move swiftly from a mild-looking fever to severe neurological complications make it particularly dangerous.
Doctors treating suspected cases stress that the window for intervention can be very short. Signs of brain inflammation may develop within 24 to 48 hours after the onset of symptoms that initially resemble a routine viral infection. By the time symptoms such as seizures, altered consciousness, unusual drowsiness or neck stiffness appear, the infection may already have affected the brain.
Young children appear to be particularly vulnerable, with cases tending to rise during the monsoon months. However, there is an important point of reassurance for families: Chandipura virus is not considered a person-to-person contagious infection. It is transmitted through the bite of infected insects rather than through direct contact with an infected child.
The Sandfly Linked to the OutbreakChandipura vesiculovirus derives its name from Chandipura village in Maharashtra, where it was first identified in 1965. The virus belongs to the Vesiculovirus genus within the Rhabdoviridae family. In Gujarat, sandflies have been identified as important vectors, with mosquitoes and ticks also being associated with transmission.
Sandflies often thrive in specific environmental conditions, including cracks and crevices in mud or sandy walls. Such breeding sites can become particularly relevant during the monsoon season. As a result, Gujarat's prevention efforts have focused partly on reducing these insect habitats.
Authorities have urged residents to seal cracks and crevices in mud walls, which can provide suitable breeding areas for sandflies. Insecticide spraying is also being carried out in areas around cattle sheds and other locations where insect populations may increase.
Children, particularly those between nine months and 14 years of age, have been considered the most vulnerable group. The reported cases in the current outbreak have largely involved children below 15 years of age.
Symptoms Parents Should Not Ignore
The initial symptoms of Chandipura virus infection can appear deceptively similar to those of an ordinary viral illness. This is one reason parents and caregivers need to remain alert, particularly in districts where cases have been reported.
Warning signs that require urgent medical attention include:
Sudden high fever
Repeated vomiting
Seizures or convulsions
Confusion, unusual behaviour or excessive drowsiness
Neck stiffness
There is no specific antiviral medicine or licensed vaccine available for Chandipura virus. Treatment therefore focuses on intensive supportive care, including controlling seizures, maintaining adequate hydration and closely monitoring the child's neurological condition.
If a child develops a sudden fever accompanied by neurological symptoms, especially while living in or travelling through an area reporting Chandipura cases, immediate medical evaluation is essential.
Early hospitalisation and timely access to critical care may improve the chances of recovery, particularly because Chandipura-associated encephalitis can progress rapidly and has historically been associated with a high fatality rate.
Where Gujarat Stands Now
Seven confirmed patients are currently receiving specialist treatment at civil hospitals in Gandhinagar, Sabarkantha-Himatnagar, Patan, Rajkot and Bhavnagar, while six patients have recovered and have been discharged, according to the reported outbreak figures.
The infections have been reported across multiple districts. Panchmahal and Kheda recorded two positive cases each, while Sabarkantha, Mehsana, Bharuch and Bhavnagar reported one case each during the earlier phase of the outbreak, before the overall tally increased in early August.
This is far from Gujarat's first encounter with Chandipura virus. The country witnessed a major surge in cases in 2024, described as the largest Chandipura outbreak in two decades. The case-fatality ratio during previous outbreaks has been reported to range between 56% and 75%, highlighting the severity of the infection.
Two years later, the fundamental challenge remains unchanged. There is still no specific antiviral treatment or vaccine, and the virus continues to pose a seasonal threat during the monsoon. For parents, awareness of the early warning signs and prompt medical attention remain among the most important safeguards against the disease.