The detection of Japanese encephalitis virus in Megachiropteran bats in West Kalimantan, Indonesia: A potential enzootic transmission pattern in the absence of pig holdings

Diptyanusa, Ajib and Herini, Elisabeth Siti and Indarjulianto, Soedarmanto and Satoto, Tri Baskoro Tunggul (2021) The detection of Japanese encephalitis virus in Megachiropteran bats in West Kalimantan, Indonesia: A potential enzootic transmission pattern in the absence of pig holdings. International Journal for Parasitology: Parasites and Wildlife, 14. 280 – 286. ISSN 22132244

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Abstract

The West Kalimantan province in Borneo island, Indonesia belongs to endemic area of Japanese encephalitis (JE) that accounts for approximately 30 of total cases yearly. As the presence of pig holdings is uncommon in West Kalimantan, another reservoir host might have played a role in the local transmission of JE virus in this area. Current study aimed to identify the potential role of bats in the local transmission of JE by performing molecular detection of JE virus in bats and mosquitoes using RT-PCR. Sample collection was performed in 3 districts in West Kalimantan, covering 3 different ecosystems: forest, coastal, and residential areas. Bat collection was performed using mist net and harp net, while mosquito collection was carried out using animal-baited trap and human landing collection. A total of 373 blood samples from bats were tested for JE virus, among which 21 samples (5.6) showed positive results, mainly from Cynopterus brachyotis (lesser short-nosed fruit bat) found in residential areas. Out of 53 mosquito pools, 3 JE-positive pools of Culex tritaeniorhynchus and Cx. vishnui were collected at the same location as JE-positive bats. Current study showed the first evidence of JE virus detection in several species of Megachiropteran bats in Indonesia, demonstrated the potential role of frugivorous bats in local transmission of JE in West Kalimantan. More aggressive measures are required in JE risk mitigation, particularly in initiating JE vaccination campaign and in avoiding disruption of bats’ natural habitats through changes in land-use. © 2021 The Authors

Item Type: Article
Additional Information: Cited by: 5; All Open Access, Gold Open Access, Green Open Access
Uncontrolled Keywords: leptin; Article; asymptomatic disease; bat; brachial vein; Culex; Culex tritaeniorhynchus; DNA extraction; electrophoresis; female; forest; habitat; habitat fragmentation; human; Indonesia; Japanese encephalitis virus; major clinical study; male; newborn; nonhuman; polymerase chain reaction; residential area; reverse transcription polymerase chain reaction; RNA extraction; seashore; sporozoite; vaccination; virus detection; virus transmission; zoonosis
Subjects: R Medicine > RB Biomedical Sciences
Divisions: Faculty of Medicine, Public Health and Nursing > Public Health and Nutrition
Depositing User: Sri JUNANDI
Date Deposited: 25 Sep 2024 00:48
Last Modified: 25 Sep 2024 00:48
URI: https://ir.lib.ugm.ac.id/id/eprint/4707

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