ArticleJournal of epidemiology and global health2023
Incidence of Japanese Encephalitis and Acute Encephalitis Syndrome Hospitalizations in the Medium-Endemic Region in Central India.
Article in Journal of epidemiology and global health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 10 citations in OpenAlex.
- Article
- Isolation and characterization of Japanese encephalitis virus genotype I from pig provides evidence for the presence of the virus in nasal secretion and co-circulation of JEV genotypes in Assam, India.Frontiers in cellular and infection microbiology · 2026Article
- Acute encephalitis syndrome and Japanese encephalitis in India: insights from a nationally representative laboratory surveillance network, 2014-2023.BMC infectious diseases · 2025Article
- Advances and Challenges in Vaccination and Therapeutic Strategies Against Japanese Encephalitis Virus.Pathogens (Basel, Switzerland) · 2025Review
- Microbiological Investigations for Chikungunya Virus in Children With Acute Encephalitis Syndrome in a Non-Outbreak Setting in Southern India.Journal of medical virology · 2025Article
- Informing an investment case for Japanese encephalitis vaccine introduction in Bangladesh.Science advances · 2024Article
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Authors and funding
27 authors at 7 institutions in 1 country.
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Abstract
backgroundWe estimated the incidence of Japanese encephalitis (JE) and acute encephalitis syndrome (AES) following routine immunization with the live-attenuated SA 14-14-2 JE vaccine.
methodsWe implemented enhanced surveillance of AES and JE hospitalizations in endemic districts in Maharashtra and Telangana States during 2015-2016 and 2018-2020. We estimated incidence and compared differences in the incidence of JE and AES between two states, and vaccinated and unvaccinated districts during two study periods. We also considered secondary data from public health services to understand long-term trends from 2007 to 2020.
resultsThe annual AES incidence rate of 2.25 cases per 100,000 children in Maharashtra during 2018-2020 was significantly lower than 3.36 cases per 100,000 children during 2015-2016. The six JE-vaccinated districts in Maharashtra had significantly lower incidence rates during 2018-2020 (2.03, 95% CI 1.73-2.37) than in 2015-16 (3.26, 2.86-3.70). In addition, the incidence of both JE and AES in two unvaccinated districts was higher than in the vaccinated districts in Maharashtra. Telangana had a lower incidence of both JE and AES than Maharashtra. The AES incidence rate of 0.95 (0.77-1.17) during 2018-2020 in Telangana was significantly lower than 1.67 (1.41-1.97) during 2015-2016.
conclusionsThe annual incidence rate of Japanese encephalitis was < 1 case per 100,000 children. It indicated accelerated control of Japanese encephalitis after routine immunization. However, the annual incidence of acute encephalitis syndrome was still > 1 case per 100,000 children. It highlights the need for improving surveillance and evaluating the impacts of vaccination.
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