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Quarterly Aquatic Animal Disease Report (Asia-Pacific Region) – 2011/3Country: THAILAND Period: April - June 2011Item Disease status a/ Level ofDISEASES PREVALENT IN THE REGIONMonthdiagnosisFINFISH DISEASES April May JuneOIE-listed diseases1. Epizootic haematopoietic necrosis 0000 0000 0000 III2. Infectious haematopoietic necrosis 0000 0000 0000 III3. Spring viraemia of carp 0000 0000 0000 III4. Viral haemorrhagic septicaemia 0000 0000 0000 III5. Epizootic ulcerative syndrome (2009) (2009) (2009) II6. Red seabream iridoviral disease 0000 0000 0000 IIIEpidemiologicalcommentnumbers7. Koi herpesvirus disease + - - III 1Non OIE-listed diseases8. Grouper iridoviral disease - - - III9. Viral encephalopathy and retinopathy - - - III10.Enteric septicaemia of catfish 0000 0000 0000 IIMOLLUSC DISEASESOIE-listed diseases1. Infection with Bonamia exitiosa 0000 0000 0000 II2. Infection with Perkinsus olseni 0000 0000 0000 II3. Infection with abalone herpes-like virus 0000 0000 0000 IINon OIE-listed diseases4. Infection with Marteilioides chungmuensis 0000 0000 0000 II5. Acute viral necrosis (in scallops) *** *** ***6. Akoya oyster disease *** *** ***CRUSTACEAN DISEASESOIE-listed diseases1. Taura syndrome - +( ) - III 22. White spot disease +( ) +( ) +( ) III 33. Yellowhead disease - +( ) - III 44. Infectious hypodermal and haematopoietic necrosis - + + III 55. Infectious myonecrosis 0000 0000 0000 III6.White tail disease (MrNV) - - - III7. Necrotising hepatopancreatitis *** *** ***Non OIE-listed diseases8. Monodon slow growth syndrome 0000 0000 0000 II9. Milky haemolymph disease of spiny lobster (Panulirus spp.) *** *** ***AMPHIBIAN DISEASESOIE-listed diseases1. Infection with Ranavirus (2007) (2007) + ( ) III 62. Infection with Batrachochytrium dendrobatidis 0000 0000 0000 IIANY OTHER DISEASES OF IMPORTANCE1.2.31
Quarterly Aquatic Animal Disease Report (Asia-Pacific Region) – 2011/3DISEASES PRESUMED EXOTIC TO THE REGION bLISTED BY THE OIEFinfish: Infectious salmon anaemia; Gyrodactylosis (Gyrodactylus salaris).Molluscs: Infection with Bonamia ostreae; Marteilia refringens; Perkinsus marinus; Xenohaliotis californiensis.Crustaceans: Crayfish plague (Aphanomyces astaci).NOT LISTED BY THE OIEFinfish: Channel catfish virus diseasea/ Please use the following symbols:+ Disease reported or known to be present+? Serological evidence and/or isolation of causative agent butno clinical diseases? Suspected by reporting officer but presence not confirmed+( ) Occurrence limited to certain zones*** No information available0000 Never reported- Not reported (but disease is known to occur)(year) Year of last occurrenceb/ If there is suspicion or confirmation of any of these diseases, they must be reported immediately, because the region is considered free ofthese diseases1. Epidemiological comments:(Comments should include: 1) Origin of the disease or pathogen (history of the disease); 2) Species affected; 3) Disease characteristics (unusualclinical signs or lesions); 4) Pathogen (isolated/sero-typed); 5) Mortality rate (high/low; decreasing/increasing); 6) Death toll (economic loss,etc); 7) Size of infected areas or names of infected areas; 8) Preventive/control measures taken; 9) Samples sent to national or internationallaboratories for confirmation (indicate the names of laboratories); 10) Published paper (articles in journals/website, etc). and 11) Unknowndiseases: describe details as much as possible.)Comment No.1KHV was found in one koi carp farm in Pathumthani Province during the KHV surveillance program. The fishwere normal appearance however the PCR tests were positive. The fish were under movement prohibition.The fish were destroyed after re-sampled and re-tested. The water was dis-infected and the ponds werecleaned. Concepts in bio-security for disease prevention had been advised to the farm operator.A KHV-suspected was found in one shipment of the imported kois in the quarantine house. 4,948 kois hadbeen imported and quarantined under the Department of Fisheries import control program. An extendedquarantine period was applied to this shipment. After investigations they found to be KHV-PCR negative andthe fish allowed to import into the country.2A total of 277 shrimp samples from shrimp farms had been tested at PCR Laboratories of the DOF under activesurveillance. 4 specimens or 1.4% recorded as PCR positive or carrying TSV genes. Shrimp farms withpositive testing results will subject to health improvement, movement control, eradication and/or farm disinfection.3A total of 278 shrimp samples from shrimp farms had been tested at PCR Laboratories of the DOF under activesurveillance. 10 specimens or 3.6% recorded as PCR positive or carrying WSSV genes. Shrimp farms withpositive testing results will subject to health improvement, movement control, eradication and/or farm disinfection.32
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