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Emergency response to emerging diseases: TiLV in tilapia

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SenapinS2019.pdf (85.07Kb) Open Access
Downloads: 235
Date
2019
Author
Senapin, Saengchan
Page views
6,248
Subject
disease control ASFA
disease recognition ASFA
disease resistance ASFA
disease transmission ASFA
epidemiology ASFA
husbandry diseases ASFA
aquaculture regulations ASFA
quarantine regulations ASFA
fish culture ASFA
fish diseases ASFA
freshwater aquaculture ASFA
freshwater fishes ASFA
viral diseases ASFA
infectious diseases ASFA
virology ASFA
viruses ASFA
genetics ASFA
emergencies ASFA
freshwater ASFA
hepatopancreas ASFA
polymerase chain reaction ASFA
fisheries ASFA
genes ASFA
fish ASFA
nucleic acids ASFA
lakes ASFA
pathogens ASFA
protocols ASFA
RNA ASFA
aquaculture ASFA
histopathology ASFA
detection ASFA
nucleotide sequence ASFA
plasmids ASFA
DNA ASFA
inland waters ASFA
genetic variation ASFA
countries ASFA
Vibrio parahaemolyticus AGROVOC
Asia AGROVOC
Thailand AGROVOC
Tilapia tilapinevirus AGROVOC
Taxonomic term
Vibrio campbellii GBIF
Vibrio harveyi GBIF
Vibrio owensii GBIF
Amnoonviridae GBIF
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Abstract
Tilapia lake virus (TiLV) is a novel RNA virus resembling Orthomyxovirus. It has been recently re-classified to Tilapia tilapinevirus species, under Tilapinevirus genus, Amnoonviridae family (ICTV, 2018). Since the first discovery in Israel in 2014, so far TiLV has been reported from 14 countries in three continents (Asia, Africa, and South America). Thailand is one of the affected countries that reported emergence of this virus in 2017. Initially, we employed nested RT-PCR primer sequences previously published for TiLV diagnosis. However, the resulting amplification of nonspecific fish genes led us to modify the nested RT-PCR protocols into a semi-nested RT-PCR by omitting a non-specific primer to avoid false positive results. Subsequently, our molecular work together with histopathology and sequence analysis confirmed the presence of TiLV infection in Thailand. Prior to the publication of our manuscript, we informed the Thai Department of Fisheries of our discovery of TiLV in Thailand. Our publication was preceded by a brief article at the website of the Network of Aquaculture Centers in Asia-Pacific in which we warned of the spread of TiLV and offered free use of a newly improved, semi-nested RT-PCR method and positive control plasmid for detection of TiLV. To date, we have provided positive controls in response to 44 requests from 24 countries who have expressed their appreciation for our attempt to help in emergent controlling the spread of this fish pathogen. Our current study focuses on genetic diversity of TiLV and development of detection method that covers all genetic variants.
URI
http://hdl.handle.net/10862/3468
Suggested Citation
Senapin, S. (2019). Emergency response to emerging diseases: TiLV in tilapia. In E. A. Tendencia, L. D. de la Peña, & J. M. V. de la Cruz (Eds.), Aquatic Emergency Preparedness and Response Systems for Effective Management of Transboundary Disease Outbreaks in Southeast Asia: Proceedings of Asean Regional Technical Consultation, 20-22 August 2018, Centara Grand Central Ladprao, Bangkok, Thailand (pp. 81-83). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.
Type
Conference paper
ISBN
9789719931089
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  • Aquatic Emergency Preparedness and Response Systems for Effective Management of Transboundary Disease Outbreaks in Southeast Asia [20]

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