Abstract
Nipah virus (NiV) is a zoonotic paramyxovirus belonging to the genus Henipavirus, which infects Pteropus bat species in Southeast and South Asia. Since its discovery in the late 1990s in Malaysia, NiV has caused outbreaks in humans in Singapore, Bangladesh, India and the Philippines. The spillover pathway for the most recent NiV outbreak in 2023 in Kerala, India, remains speculative. NiV causes serious disease in infected humans, with a mean case-fatality rate of 70%, and no approved treatment or vaccines exist. Humans have been infected directly from bats through shared food or through infected bridging hosts, including pigs and horses, although other spillover pathways may exist. Here, we review the pathways of NiV spillover and transmission, highlighting areas needing further research. We emphasize the importance of collaborative and multidisciplinary efforts both in the laboratory and in the field, and the implementation of a One Health strategy to prevent future epidemics.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$32.99 / 30 days
cancel any time
Subscribe to this journal
Receive 12 digital issues and online access to articles
$119.00 per year
only $9.92 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to the full article PDF.
USD 39.95
Prices may be subject to local taxes which are calculated during checkout



Similar content being viewed by others
References
Luby, S. P. et al. Recurrent zoonotic transmission of Nipah virus into humans, Bangladesh, 2001–2007. Emerg. Infect. Dis. 15, 1229–1235 (2009).
Hegde, S. T. et al. Investigating rare risk factors for Nipah virus in Bangladesh: 2001–2012. EcoHealth 13, 720–728 (2016).
Chakraborty, A. et al. Evolving epidemiology of Nipah virus infection in Bangladesh: evidence from outbreaks during 2010–2011. Epidemiol. Infect. 144, 371–380 (2016).
McKee, C. D. et al. Nipah virus detection at bat roosts after spillover events, Bangladesh, 2012–2019. Emerg. Infect. Dis. 28, 1384–1392 (2022).
Islam, A. et al. Nipah virus exposure in domestic and peridomestic animals living in human outbreak sites, Bangladesh, 2013–2015. Emerg. Infect. Dis. 29, 393–396 (2023).
Nikolay, B. et al. Transmission of Nipah virus—14 years of investigations in Bangladesh. N. Engl. J. Med. 380, 1804–1814 (2019).
Plowright, R. K. et al. Prioritizing surveillance of Nipah virus in India. PLoS Negl. Trop. Dis. 13, e0007393 (2019).
Harit, A. K. et al. Nipah/Hendra virus outbreak in Siliguri, West Bengal, India in 2001. Indian J. Med. Res. 123, 553–560 (2006).
Chadha, M. S. et al. Nipah virus-associated encephalitis outbreak, Siliguri, India. Emerg. Infect. Dis. 12, 235–240 (2006).
Yadav, P. D. et al. Detection of Nipah virus RNA in fruit bat (Pteropus giganteus) from India. Am. J. Trop. Med. Hyg. 87, 576–578 (2012).
World Health Organization. Nipah Virus Infection—India https://www.who.int/emergencies/disease-outbreak-news/item/2023-DON490 (3 October 2023).
Arunkumar, G. et al. Outbreak investigation of Nipah virus disease in Kerala, India, 2018. J. Infect. Dis. 219, 1867–1878 (2019).
Yadav, P. D. et al. Nipah virus sequences from humans and bats during Nipah outbreak, Kerala, India, 2018. Emerg. Infect. Dis. 25, 1003–1006 (2019).
Hegde, S. et al. Potential for person-to-person transmission of henipaviruses: a systematic review of the literature. J. Infect. Dis. https://doi.org/10.1093/infdis/jiad467 (2023).
World Health Organization. 2018 Annual Review of Diseases Prioritized under the Research and Development Blueprint (WHO, 2018).
Hossain, M. J. et al. Clinical presentation of nipah virus infection in Bangladesh. Clin. Infect. Dis. 46, 977–984 (2008).
Goh, K. J. et al. Clinical features of Nipah virus encephalitis among pig farmers in Malaysia. N. Engl. J. Med. 342, 1229–1235 (2000).
Halpin, K. et al. Pteropid bats are confirmed as the reservoir hosts of henipaviruses: a comprehensive experimental study of virus transmission. Am. J. Trop. Med. Hyg. 85, 946–951 (2011).
Epstein, J. H. et al. Nipah virus dynamics in bats and implications for spillover to humans. Proc. Natl Acad. Sci. USA 117, 29190–29201 (2020).
Chua, K. B. et al. Nipah virus: a recently emergent deadly paramyxovirus. Science 288, 1432–1435 (2000).
Luby, S. P., Gurley, E. S. & Hossain, M. J. Transmission of human infection with Nipah virus. Clin. Infect. Dis. 49, 1743–1748 (2009).
Chowdhury, S. et al. Serological evidence of henipavirus exposure in cattle, goats and pigs in Bangladesh. PLoS Negl. Trop. Dis. 8, e3302 (2014).
Ching, P. K. et al. Outbreak of henipavirus infection, Philippines, 2014. Emerg. Infect. Dis. 21, 328–331 (2015).
Gokhale, M. et al. Serosurvey for Nipah virus in bat population of southern part of India. Comp. Immunol. Microbiol. Infect. Dis. 85, 101800 (2022).
Harcourt, B. H. et al. Genetic characterization of Nipah virus, Bangladesh, 2004. Emerg. Infect. Dis. 11, 1594–1597 (2005).
Arankalle, V. A. et al. Genomic characterization of Nipah virus, West Bengal, India. Emerg. Infect. Dis. 17, 907–909 (2011).
Hegde, S. T. et al. Using healthcare-seeking behaviour to estimate the number of Nipah outbreaks missed by hospital-based surveillance in Bangladesh. Int. J. Epidemiol. 48, 1219–1227 (2019).
Mohandas, S. et al. Genomic characterization, transcriptome analysis, and pathogenicity of the Nipah virus (Indian isolate). Virulence 14, 2224642 (2023).
Nikolay, B. et al. A framework to monitor changes in transmission and epidemiology of emerging pathogens: lessons from Nipah virus. J. Infect. Dis. 221, S363–S369 (2020).
Nikolay, B. et al. Evaluating hospital-based surveillance for outbreak detection in Bangladesh: analysis of healthcare utilization data. PLoS Med. 14, e1002218 (2017).
Parveen, S. et al. It’s not only what you say, it’s also how you say it: communicating Nipah virus prevention messages during an outbreak in Bangladesh. BMC Public Health 16, 726 (2016).
Singhai, M. et al. Nipah virus disease: recent perspective and One Health approach. Ann. Glob. Health 87, 102 (2021).
Sahay, R. R. et al. Experiential learnings from the Nipah virus outbreaks in Kerala towards containment of infectious public health emergencies in India. Epidemiol. Infect. 148, e90 (2020).
Moore, K. A. et al. Measures to prevent and treat Nipah virus disease: research priorities for 2024–29. Lancet Infect. Dis. 24, e707–e717 (2024).
WHO Regional Office for South-East Asia. Technical Brief: Enhancing Readiness for a Nipah Virus Event in Countries not Reporting a Nipah Virus Event (WHO, 2024).
Yob, J. M. et al. Nipah virus infection in bats (order Chiroptera) in peninsular Malaysia. Emerg. Infect. Dis. 7, 439–441 (2001).
Wacharapluesadee, S. et al. Bat Nipah virus, Thailand. Emerg. Infect. Dis. 11, 1949–1951 (2005).
Jolma, E. R. et al. Longitudinal secretion of paramyxovirus RNA in the urine of straw-coloured fruit bats (Eidolon helvum). Viruses https://doi.org/10.3390/v13081654 (2021).
Plowright, R. K. et al. Transmission or within-host dynamics driving pulses of zoonotic viruses in reservoir-host populations. PLoS Negl. Trop. Dis. 10, e0004796 (2016).
Paez, D. J. et al. Conditions affecting the timing and magnitude of Hendra virus shedding across pteropodid bat populations in Australia. Epidemiol. Infect. 145, 3143–3153 (2017).
Field, H. et al. Spatiotemporal aspects of Hendra virus infection in pteropid bats (flying-foxes) in Eastern Australia. PloS ONE 10, e0144055 (2015).
Becker, D. J., Eby, P., Madden, W., Peel, A. J. & Plowright, R. K. Ecological conditions predict the intensity of Hendra virus excretion over space and time from bat reservoir hosts. Ecol. Lett. 26, 23–36 (2023).
Plowright, R. K. et al. Reproduction and nutritional stress are risk factors for Hendra virus infection in little red flying foxes (Pteropus scapulatus). Proc. Biol. Sci. 275, 861–869 (2008).
Eby, P. et al. Pathogen spillover driven by rapid changes in bat ecology. Nature 613, 340–344 (2023).
Cortes-Azuero, O. et al. The genetic diversity of Nipah virus across spatial scales. J. Infect. Dis. 230, e1235–e1244 (2024).
Peel, A. J. et al. Synchronous shedding of multiple bat paramyxoviruses coincides with peak periods of Hendra virus spillover. Emerg. Microbes Infect. 8, 1314–1323 (2019).
McKee, C. D. et al. The ecology of Nipah virus in Bangladesh: a nexus of land-use change and opportunistic feeding behavior in bats. Viruses https://doi.org/10.3390/v13020169 (2021).
Kumar, B. M. Land use in Kerala: changing scenarios and shifting paradigms. J. Trop. Agric. 43, 1–12 (2006).
Gurley, E. S. et al. Person-to-person transmission of Nipah virus in a Bangladeshi community. Emerg. Infect. Dis. 13, 1031–1037 (2007).
NIPAH Virus Infection Guidelines for Surveillance, Diagnosis, Treatment, Prevention and Control (Department of Health and Family Welfare, 2021); https://dhs.kerala.gov.in/wp-content/uploads/2021/09/Nipah-Guidelines-9-04-21-2-1.pdf
Yadav, P. D. et al. Nipah virus outbreak in Kerala State, India amidst of COVID-19 pandemic. Front. Public Health 10, 818545 (2022).
Gonzalez, V. & Banerjee, A. Molecular, ecological, and behavioral drivers of the bat–virus relationship. iScience 25, 104779 (2022).
Crameri, G. et al. Establishment, immortalisation and characterisation of pteropid bat cell lines. PloS ONE 4, e8266 (2009).
Aurine, N. et al. Reprogrammed Pteropus bat stem cells as a model to study host–pathogen interaction during henipavirus infection. Microorganisms https://doi.org/10.3390/microorganisms9122567 (2021).
Hoffmann, M. et al. Tetherin inhibits Nipah virus but not Ebola virus replication in fruit bat cells. J. Virol. https://doi.org/10.1128/JVI.01821-18 (2019).
Glennon, N. B., Jabado, O., Lo, M. K. & Shaw, M. L. Transcriptome profiling of the virus-induced innate immune response in Pteropus vampyrus and its attenuation by Nipah virus interferon antagonist functions. J. Virol. 89, 7550–7566 (2015).
Virtue, E. R., Marsh, G. A., Baker, M. L. & Wang, L. F. Interferon production and signaling pathways are antagonized during henipavirus infection of fruit bat cell lines. PloS ONE 6, e22488 (2011).
Seifert, S. N. et al. Rousettus aegyptiacus bats do not support productive Nipah virus replication. J. Infect. Dis. https://doi.org/10.1093/infdis/jiz429 (2019).
Middleton, D. J. et al. Experimental Nipah virus infection in pteropid bats (Pteropus poliocephalus). J. Comp. Pathol. 136, 266–272 (2007).
Satter, S. M. et al. Tackling a global epidemic threat: Nipah surveillance in Bangladesh, 2006–2021. PLoS Negl. Trop. Dis. 17, e0011617 (2023).
Nahar, N. et al. A controlled trial to reduce the risk of human Nipah virus exposure in Bangladesh. EcoHealth 14, 501–517 (2017).
Thiagarajan, K. Nipah virus: Kerala reports second death in four months. BMJ 386, q2058 (2024).
Callaway, E. Deadly Marburg virus: scientists race to test vaccines in outbreak. Nature 634, 278 (2024).
Volkmer, A. Marburg virus: first cases in Rwanda spark international alarm. BMJ 387, q2155 (2024).
Laurenson-Schafer, H. et al. Description of the first global outbreak of mpox: an analysis of global surveillance data. Lancet Glob. Health 11, e1012–e1023 (2023).
Durrance-Bagale, A., Basnet, H., Rudge, J. W. & Howard, N. Engaging community members to pinpoint priorities around zoonotic disease in Nepal. One Health Cases https://doi.org/10.1079/onehealthcases.2024.0028 (2024).
World Health Organization. EPI-WIN Digest 4—Emerging Zoonotic Diseases and the One Health Approach: an Overview (WHO & EPI-WIN, 2023).
Chua, K. B. et al. Isolation of Nipah virus from Malaysian Island flying-foxes. Microbes Infect. 4, 145–151 (2002).
Islam, M. S. et al. Nipah virus transmission from bats to humans associated with drinking traditional liquor made from date palm sap, Bangladesh, 2011–2014. Emerg. Infect. Dis. 22, 664–670 (2016).
Luby, S. P. et al. Foodborne transmission of Nipah virus, Bangladesh. Emerg. Infect. Dis. 12, 1888–1894 (2006).
Chua, K. B. Nipah virus outbreak in Malaysia. J. Clin. Virol. 26, 265–275 (2003).
Balasubramanian, R. et al. Surveillance of Nipah virus in Pteropus medius of Kerala state, India, 2023. Front. Microbiol. https://doi.org/10.3389/fmicb.2024.1342170 (2024).
Raman, S. et al. Annotated checklist, distribution and regional status of the bats (Mammalia: Chiroptera) of Kerala, South India. Barbastella 14, 183–207 (2022).
Murugavel, B., Kandula, S., Somanathan, H. & Kelber, A. Home ranges, directionality and the influence of moon phases on the movement ecology of Indian flying fox males in southern India. Biol. Open https://doi.org/10.1242/bio.059513 (2023).
Gokhale, M. D. et al. Detection of possible Nipah virus infection in Rousettus leschenaultii and Pipistrellus Pipistrellus bats in Maharashtra, India. J. Infect. Public Health 14, 1010–1012 (2021).
Mohandas, S. et al. Nipah virus survey in Pteropus medius of eastern and northeastern region of India, 2022–2023. Front. Microbiol. 15, 1493428 (2024).
Epstein, J. H., Field, H. E., Luby, S., Pulliam, J. R. & Daszak, P. Nipah virus: impact, origins, and causes of emergence. Curr. Infect. Dis. Rep. 8, 59–65 (2006).
Nahar, N. et al. Piloting the use of indigenous methods to prevent Nipah virus infection by interrupting bats’ access to date palm sap in Bangladesh. Health Promot. Int. 28, 378–386 (2013).
Chaudhari, S. P. et al. Journey towards National Institute of One Health in India. Indian J. Med. Res. 153, 320–326 (2021).
Acknowledgements
A.B. acknowledges support from the Canadian Institutes of Health Research–Centre for Research on Pandemic Preparedness and Health Emergencies, Early Career Investigator Grant (grant number PEE-183995), Canadian Institutes of Health Research–Institute for Infection and Immunity, Early Career Research Support (grant number PTT-192089), Canadian Institutes of Health Research–Institute for Infection and Immunity (project grant number PJT-195787) and Natural Sciences and Engineering Research Council of Canada (grant number RGPIN-2022-03010). VIDO receives operational funding from the Canada Foundation for Innovation through the Major Science Initiatives, the Government of Saskatchewan through Innovation Saskatchewan and the Ministry of Agriculture. R.K.P. was supported by the US National Science Foundation (grant numbers EF-2133763 and EF-2231624). H.S. and E.S.G. are supported by National Institutes of Health (NIH) and National Institute of Allergy and Infectious Diseases (NIAID) funding (grant number U01AI168287). J.H.E. was supported by NIH/NIAID (grant number U01AI153420). The content of this Perspective is solely the responsibility of the authors and does not necessarily represent the official views of the NIH.
Author information
Authors and Affiliations
Contributions
P.D.Y., K.B., R.K.P., H.S., E.S.G. and A.B. synthesized the idea for the Perspective and generated the outline for the article. P.D.Y., K.B., D.Y.P., T.S., M.Z.R., A.J.P., J.H.E., J.M.M., R.K.P., H.S., E.S.G., S.M.S. and A.B. wrote the first draft, provided feedback and assisted with revisions. K.B. and D.Y.P. generated the figures. R.K.P. and A.B. assisted in refining the figures. A.B. supervised K.B. P.D.Y., E.S.G., S.M.S. and A.B. are co-senior authors.
Corresponding author
Ethics declarations
Competing interests
A.B. is a co-inventor of the Efk3B bat cell line, which is sold through Kerafast, USA. The other authors declare no competing interests.
Peer review
Peer review information
Nature Microbiology thanks Renata Muylaert, Hector Aguilar and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Yadav, P.D., Baid, K., Patil, D.Y. et al. A One Health approach to understanding and managing Nipah virus outbreaks. Nat Microbiol 10, 1272–1281 (2025). https://doi.org/10.1038/s41564-025-02020-9
Received:
Accepted:
Published:
Version of record:
Issue date:
DOI: https://doi.org/10.1038/s41564-025-02020-9


