Nipah virus infection is an emerging infection caused by Nipah virus, described in the sources as a paramyxovirus and as a bat-borne pathogen [1][2]. The virus was first identified in Malaysia in 1998, and the disease has since been linked to outbreaks in Malaysia, Bangladesh, India, Singapore, and the Philippines [1][2][3]. Source-backed detail on the full virologic spectrum, incubation characteristics, or other formal classification features is not yet available beyond these descriptions [1][2][3].
Disease Profile
Nipah virus infection
立百病毒感染
Nipah virus infection is an emerging bat-borne viral disease first identified in Malaysia in 1998 and subsequently reported in other parts of South and Southeast Asia [1][2]. It is associated with severe neurological and respiratory disease and has been described as highly lethal, with clinical presentation ranging from asymptomatic infection to fatal encephalitis [1][2]. Current source-backed summaries emphasize outbreak containment through rapid diagnosis, infection control, and prevention focused on transmission interruption rather than curative therapy [1][2].
The reported clinical spectrum ranges from asymptomatic infection to severe disease, including fatal encephalitis [2]. Another source characterizes the illness as causing severe neurological and respiratory disease and describes it as highly lethal [1]. In one summary, symptoms noted after exposure include fever, headache, cough, shortness of breath, and confusion, with onset stated to occur 5–14 days after exposure [3]. Source-backed detail on the frequency of these manifestations, the usual course in uncomplicated infection, and complication rates is not yet available [1][2][3].
Nipah virus was first recognized in Peninsular Malaysia, where outbreaks occurred in 1998–1999 and were associated with substantial human and swine disease; one report notes 105 human deaths and the culling of about 1.1 million pigs by May 1999 [4]. Subsequent outbreaks were reported in Bangladesh and India, while Malaysia had no additional cases after 1999 in one cited review [2]. The sources identify fruit bats of Pteropid species as the natural reservoir and note that the virus can cause disease in humans and animals [4][2]. Another summary states that outbreaks have also been reported in Singapore and the Philippines, but source-backed detail on current surveillance burden by country is not yet available [3].
The sources describe Nipah virus as spreading in the community through infected animals or other infected people [1]. In the Malaysia-Singapore outbreak, transmission occurred primarily through contact with pigs, while in Bangladesh and India it was associated with ingestion of contaminated date palm sap and human-to-human transmission [2]. One source also states that spread typically requires direct contact with an infected source and that entry occurs through the oro-nasal route [3].
Source-backed risk-group detail is limited. The outbreak descriptions identify pig farmers as a major affected group in the Malaysia outbreak and note exposure of people through contact with pigs, contaminated date palm sap, or infected persons [4][2]. One summary also indicates that the virus circulates among specific types of fruit bats, making people with relevant bat, animal, or contaminated food exposures the most clearly documented exposure groups in the available sources [3][4].
The available sources emphasize infection control, rapid diagnosis, and outbreak containment as central preventive measures [1]. For human-to-human nosocomial transmission, one summary specifically mentions strict standard infection control practices, including isolation of patients, good hand hygiene, and the use of personal protective equipment [3]. Another review frames prevention and control within a One Health approach because of the bat reservoir and transmission chains from bats to humans [1].
Nipah virus infection should be read in surveillance terms as an emerging, outbreak-prone zoonosis with potential for spillover from bats and amplification through animal or human transmission chains [1][2][4]. The sources note that serological and molecular diagnostic techniques have been developed for diagnosis and surveillance, and that rapid diagnosis is important for outbreak control [1]. Interpretation of reports should remain cautious because the sources indicate differing clinical and epidemiological features by strain and because source-backed detail on routine baseline incidence is not yet available [1][3].
- 1 Aditi et al. Nipah virus infection: A review. Epidemiol Infect. 2019 Jan. PMID: 30869046. doi: 10.1017/S0950268819000086. PubMed: https://pubmed.ncbi.nlm.nih.gov/30869046/
- 2 Ang BSP et al. Nipah Virus Infection. J Clin Microbiol. 2018 Jun. PMID: 29643201. doi: 10.1128/JCM.01875-17. PubMed: https://pubmed.ncbi.nlm.nih.gov/29643201/
- 3 Kaku Y et al. [Nipah virus infection]. Uirusu. 2004 Dec. PMID: 15745162. doi: 10.2222/jsv.54.237. PubMed: https://pubmed.ncbi.nlm.nih.gov/15745162/
- 4 Nipah Virus Infection. Journal of Clinical and Pharmaceutical Research. 2021. doi: 10.61427/jcpr.v1.i1.2021.11. DOI: https://doi.org/10.61427/jcpr.v1.i1.2021.11
- 5 Nipah virus infection. CABI Compendium. 2019. doi: 10.1079/cabicompendium.73439. DOI: https://doi.org/10.1079/cabicompendium.73439
- 6 Nipah Virus Infection. Viral Infections of the Human Nervous System. 2012. doi: 10.1007/978-3-0348-0425-7_13. DOI: https://doi.org/10.1007/978-3-0348-0425-7_13
- B33.8
- 1D64
Dataset Archive
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