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Title: Update on early mortality syndrome/acute hepatopancreatic necrosis disease by April 2018
Authors: Anuphap Prachumwat
Suparat Taengchaiyaphum
Natthinee Mungkongwongsiri
Diva J. Aldama-Cano
Timothy W. Flegel
Kallaya Sritunyalucksana
Mahidol University
Thailand National Center for Genetic Engineering and Biotechnology
Instituto Tecnológico de Sonora
Keywords: Agricultural and Biological Sciences
Issue Date: 1-Feb-2019
Citation: Journal of the World Aquaculture Society. Vol.50, No.1 (2019), 5-17
Abstract: © Copyright by the World Aquaculture Society 2018 Outbreaks of acute hepatopancreatic necrosis disease (AHPND) have caused great economic losses to many shrimp-producing countries in Asia since its first appearance in 2009. The causative agent was reported in 2013 as specific isolates of Vibrio parahaemolyticus (VP AHPND ) that were later found to harbor a plasmid (pVA) encoding the Pir-like binary toxin genes Pir vp A and Pir vp B. VP AHPND isolates colonize the shrimp stomach and release the binary toxins that cause massive sloughing of tubule epithelial cells followed by shrimp mortality. More recent information indicates that pVA plasmid and variants occur in many V. parahaemolyticus serotypes and also in other Vibrio species such as Vibrio campbellii, Vibrio harveyi, and Vibrio owensii. Information on such genomic and proteomic studies of different VP AHPND isolates from different countries are reviewed. A cohort study carried out in Thailand in 2014 indicated that AHPND outbreaks account for only a portion of the disease outbreaks reported by shrimp farmers as outbreaks of early mortality syndrome (EMS). It is recommended that a regional research network and surveillance program for newly emerging or re-emerging pathogens be established to speed up the process of diagnosis and the implementation of coordinated control measures and to avoid a repeat of the EMS/AHPND scenario.
ISSN: 17497345
Appears in Collections:Scopus 2019

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