Mapping potential risk of Nipah virus transmission from lyle's flying fox (Pteropus lylei) in Thailand

Name: Aingorn Chaiyes

LCSH: Kasetsart University -- Dissertatoins. Ph.D. (Forestry) 2020

Classification :.LCCS: QL737.C575

LCSH: Kasetsart University. -- Faculty of Forestry -- Dissertations

LCSH: Mariana flying fox -- Thailand

LCSH: Nipah virus

Abstract: Nipah virus (NiV) infection is a newly emerging zoonosis and causes encephalitis or respiratory illness in Malaysia, Bangladesh and India, with the Flying Fox (Pteropus spp.) identified as a natural reservoir host. The Lyle's Flying Fox (LFF; Pteropus lylei) was declared as a reservoir host for NiV and is distributed across Thailand, Cambodia and Vietnam. Infection is suspected to result from contact between bat-intermediate host-human and bat-human transmission, with occasional secondary human-to-human transmission. Using an ecological niche model and field survey, the locations of LFF reservoir hosts were used to generate a probabilistic risk surface of zoonotic transmission across Thailand. A total of LFF 30 roosting sites and a population of 75,016 bats were found in Thailand. The roosting sites were distributed among 16 provinces in Central, Western and Eastern Thailand. Almost all of the roosting sites were located below an elevation of 23.73 m, close to a river or perennial water body and in a Buddhist temple. Areas highly suitable for route transmission of NiV from LFF to humans were predicted in 22 provinces inhabited by 2.3 million people across Central Thailand. Thus, conservation efforts should prioritize forest protection for roosting sites, and preventing anthropogenic threats affecting this species that will reduce contact between bats and humans. Due to a lack of vaccines and effective antivirals, these maps can be useful in detecting early signs of infection or acting as early warning systems for preparedness strategies for NiV control and in helping in containment of these outbreaks. I suggest combining this risk map with reservoir host movement can be used to conduct differential classification of highly transmissible pathogens, thereby enabling a more rapid response to an outbreak of NiV from a reservoir host. The protocol developed here can be used for other zoonotic diseases.

Kasetsart University. Office of the University Library

Address: Bangkok

Email: tdckulib@ku.ac.th

Name: Prateep Duengkae

Role: Thesis Advisor

Name: Supaporn Wacharapluesadee

Role: Thesis CO-Advisor

Created: 2020

Modified: 2025-06-30

Issued: 2025-06-30

วิทยานิพนธ์/Thesis

application/pdf

URL: https://www.lib.ku.ac.th/KUthesis/2563/aingorn-cha-all.pdf

CallNumber: QL737.C575 .A46

eng

Spatial: Thailand

DegreeName: Doctor of Philosophy

Level: Doctoral Degraee

Descipline: Forestry

Grantor: Kasetsart University

©copyrights Kasetsart University

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