Nipah Virus Disease: Epidemiological, Clinical, Diagnostic and Legislative Aspects of This Unpredictable Emerging Zoonosis.
Authors: Bruno Luigi, Nappo Maria Anna, Ferrari Luca, Di Lecce Rosanna, Guarnieri Chiara, Cantoni Anna Maria, Corradi Attilio
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary: Nipah Virus Disease in Equine and Livestock Contexts Nipah virus (NiV), a paramyxovirus naturally harboured by fruit bats, has emerged as a significant zoonotic threat with documented spillover into horses, pigs, dogs and cats across Asia, causing severe respiratory and neurological disease with high mortality rates in affected populations. This 2022 review synthesises epidemiological data from major outbreaks in Malaysia, Singapore, Bangladesh, India and the Philippines, examining transmission routes that vary geographically according to local breeding practices, dietary habits and the molecular virulence characteristics of circulating virus strains. Beyond traditional serological and molecular diagnostic approaches, the authors emphasise that understanding NiV's complex inter-species transmission dynamics—including direct horse-to-human transmission—is critical for practitioners managing at-risk animals. Control strategies remain centred on robust biosecurity protocols targeting bat reservoir management and animal husbandry practices, though vaccine development continues; critically, the review highlights that climate change and habitat disruption may expand bat distributions and increase spillover risk, warranting vigilance for emergence in previously unaffected regions. For equine professionals, this underscores the importance of recognising NiV as an emerging threat in endemic areas, implementing strict biosecurity around bat exposure, and maintaining diagnostic awareness where outbreaks have been identified.
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Practical Takeaways
- •Equine practitioners should recognize that horses are susceptible to natural Nipah virus infection and implement biosecurity protocols to prevent exposure to potentially infected animals, particularly in endemic regions
- •Maintain awareness of zoonotic transmission risk and report suspected cases to veterinary authorities, as the disease presents with respiratory and neurological signs that may overlap with other equine conditions
- •Monitor for emerging spillover events in your region, particularly in areas with bat populations and mixed animal farming operations, as climate and anthropogenic changes may increase disease transmission risk
Key Findings
- •Nipah virus is a paramyxovirus zoonosis with natural reservoirs in fruit bats (Pteropus genus) that can transmit to domestic animals including pigs, horses, dogs and cats
- •Transmission occurs intra-species and inter-species with varying modes dependent on geographical location, breeding methods, eating habits and viral genetic traits
- •Outbreaks documented in Malaysia, Singapore, Bangladesh, India and Philippines with high mortality rates in both human and animal populations
- •Diagnosis utilizes serological, molecular, virological and immunohistochemical methods; control relies on biosecurity measures and vaccines still under development