Gaya’s Japanese Encephalitis model shows the way for India

Patna. “Earlier, hearing the name of meningitis used to get scared. When Asha Didi told us that the JE vaccine can protect children from this serious disease, we immediately got our daughter vaccinated. Now I have faith that she is safe. “

This story of Raju Manjhi, a resident of Utrain village in Konch block of Gaya district,  reflects a remarkable public health transformation. Once known for recurrent outbreaks of Japanese Encephalitis (JE), Gaya has emerged as a national example of how immunisation, strong health systems and community participation can successfully contain a deadly disease. There was a time when the rainy season in pig farming areas and villages surrounded by paddy fields became synonymous with worry for parents.  The news of high fever, fainting and death of children created an atmosphere of fear in the entire region. Today, the same villages  are writing a new story thanks to vaccination, surveillance and community awareness. ASHA workers are reaching door-to-door with vaccination cards, Panchayats are playing an active role in monitoring and parents are reaching out to health centres to vaccinate their children. This is the reason that Gaya, which once struggled with the challenge of JE, has now emerged as an effective model of control of this disease. 

Damayanti Devi, an ASHA worker from Kesati village in Dobhi block,  recalls the challenges of the early years. “Initially, there was considerable hesitation and confusion about vaccination. But once people understood that the vaccine could protect their children from a potentially fatal disease, confidence grew and acceptance increased rapidly.”

Focus on pig farming has changed the picture

Dr. Haque, District Vector Borne Disease Control Officer of Gaya, says that the Japanese Encephalitis virus is mainly spread through mosquitoes of the Culex species. According to scientific studies, pigs are considered to be the major “amplifying hosts” of this virus, in which the virus multiplies rapidly and can reach humans through infected mosquitoes. Paddy fields, waterlogged areas and pig farming villages are considered to be more vulnerable to infection.  According to a study published in The Lancet Infectious Diseases, the risk of Japanese encephalitis can increase by almost four times in areas with an overabundance of pig farming. 

The health department in Gaya, understanding this pattern of the disease, did not limit itself to vaccination only. Piggery areas were identified, Panchayats were alerted,  a system was developed to report abortions or unnatural deaths in pigs and the community was continuously sensitised about mosquito control, hygiene and protection of children. In each panchayat, two vehicles were identified to take potential patients to the hospital, whose numbers were available with ASHA and ANM workers. 

From immunisation to treatment, multi-layered interventions

The initiative towards JE control started on a pilot basis in  Gaya in the year 2009-10  has reached the successful immunisation of more than 1.22  lakh children by 2024-25. Along with this, the health system was also strengthened. From medical colleges to community and primary health centres, beds were reserved for JE patients. In the Community Health Centers, 28 types of medicines and 16 types of equipment were made available,  while in the Sadar Hospital, the arrangement of 44 types of medicines and 19 types of equipment was ensured. The first dose coverage of JE  in the state is currently more than 93 per cent. 

Dr. Ravindra Kumar, Head of the Department of Pediatrics at Anugrah Narayan Magadh Medical College and Hospital, attributes much of the success to improvements in diagnosis and treatment. “Timely detection, adherence to standard treatment protocols, and the availability of medicines and beds even at the primary health center level have dramatically improved outcomes with the mortality rate declining from about 30 per cent to less than 5 per cent.,” he says. 

A dramatic decline in cases

Between 2017 and 2019, Gaya witnessed a heavy burden of Japanese Encephalitis and Acute Encephalitis Syndrome (AES), with 2019 recording the highest number of cases. However, the combined impact of expanded vaccination coverage, community-based surveillance and stronger health facilities steadily reversed the trend.

Cases declined significantly during 2020 and 2021. In 2022, only one JE case was reported. No cases were reported in 2023, and just one case was recorded in 2024.

The state-level picture is equally encouraging. Bihar reported 359 JE cases in 2014. By 2025, not a single JE case had been reported in the state. Data from the National Centre for Vector-Borne Disease Control’s Annual Report 2024-25 indicate that Bihar is making rapid progress towards eliminating Japanese Encephalitis as a public health threat.

Community participation became the greatest strength

Munira Khatun, Mukhiya of Amas block, recalls the atmosphere of fear that prevailed during the early years. “At that time, Panchayat representatives, ASHA workers and health personnel worked together to build confidence among villagers through meetings, home visits and continuous engagement.”

One of the defining features of the Gaya model was its emphasis on community ownership. Residents were not treated merely as beneficiaries but as active partners in disease prevention.

ASHAs, ANMs and Anganwadi workers visited households to explain the importance of vaccination. Panchayat leaders, self-help groups and local civil society organisations played a critical role in dispelling myths and strengthening public trust.

Families were encouraged to use mosquito nets, ensure proper nutrition for children, report fever promptly, avoid reliance on faith healers and seek timely medical care. Over time, these efforts transformed community participation into the strongest

A practical model for the country

The World Health Organization considers Japanese encephalitis to be a serious public health challenge for children in Asia. According to the World Health Organization,  approximately 68  thousand JE cases are estimated to occur each year worldwide. The mortality rate can be as high as 20 to 30  per cent,  while 20 to 30  per cent of the surviving patients are at risk of developing permanent neurological or mental disability. At such a time, Gaya district proves that if scientific strategy, comprehensive vaccination, robust surveillance mechanism and active participation of the community are combined together,   the menace of serious illness like meningitis can be effectively controlled. 

The story of Gaya is more than the success of a single district. It demonstrates that when political commitment, local leadership, health-system preparedness and community trust come together, even the most daunting public health challenges can be overcome. As India moves towards eliminating Japanese Encephalitis, Gaya offers a practical, scalable and replicable model for the rest of the country.