A review on White Spot Disease in penaeid ... - Middle East - OIE

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Code of Practice 1388/44/01(summarized)• 2- Special notes:• -Disinfection of all the equipment and materials in the pond must be done by spraying water solution of Calcium Hypochlorite(1600ppm) or if possible the equipment can be submerged in its solution (40ppm) for at least 3 days.• -Disinfection of vehicles especially the wheels must be done with spraying water solution of Calcium Hypochlorite (1600ppm),• -Disinfection of the workers clothing, shoes, boots must be done and it is better to use disposal gloves and foot covers in thenext operations.• -Disinfection of the out let water channel of the farm must be done with Calcium Hypochlorite (40 ppm).• -Disinfection of the pond bottom must be done when it is still wet with lime appropriately after testing the soil pH, and thenshould be left to be dried completely.• -The disinfected water of the pond must be discharged after at least 7 days, through the filters in order to minimize the releaseof dirt particles and their associated microorganisms in the environment. The filtered materials must be collected, burned andburied hygienically.• -Movement of workers, equipments, vehicles from the infected farm to other farms is forbidden.• -Entrance of feed trucks to infected farm is forbidden and the feed delivery must be done out side the infected farm and shouldbe transported to infected farm according to all principles of hygiene and biosecurity.• -IVO technicians should have in place (for each farm) equipment and cloths etc. and it should not be taken out from infectedfarm before end of the control of the situation.• -All the sampling and transportation of the shrimp from the infected pond should be done subject to prior awareness andpermission of IVO.• -The presence of the birds in the pond must be minimize to even zero by any means, and all the moribund shrimp near theedge of the pond must be collected regularly and burned and buried with lime.• - Even when disinfectant is used to kill the shrimps, the pond water and dead shrimp cannot be released soon after the deathof shrimp, because the virus is viable for a longer time within the nuclei of deeper tissues of the shrimp body even after itsdeath. Thus, the dead carcass must be kept in the pond for about 7 days to let the shrimp decay and to allow the virus tocompletely die by autolysis. Release of freshly killed shrimp into open water will result in the spread of the disease and itspersistent in the same farm.
White Spot Disease control measures in Iran during July-Dec from 2005-2009Year Species * Qf M Te Gsu Tsu Qi S Sp Z Vp V T Cr Cn2005 Crustaceans A A A A A A A A2006 Crustaceans A A A A A A AWild species2007 Crustaceans A A A A A A A A A AWild species A A A2008 Crustaceans A A A A A AWild species2009 Crustaceans A A A A A A A A AA=Applied ,*= Notifiable disease ,Qf=Precautions at the borders ,M= Monitoring, Te=Screening, GSu=Generalsurveillance, TSu=Targeted surveillance, Qi=Movement control inside the country, S=Stamping out,Sp=Modified stamping out, Z=Zoning, Vp=Vaccination Prohibited, V=Routine vaccination, T=Treatment ,Cr=Control of wild life reservoirs, Cn=Control of arthropods,Source: OIE website
Page 1: Ali Khatibi Tabar D.V.MDepartment o
Page 4 and 5: Aetiology• The causative agent of
Page 6: World Distribution• Prior to 1992
Page 12 and 13: Environmental stressors• Disease
Page 14 and 15: Immunostimulants & vaccine• The c
Page 16 and 17: Clinical & gross signs• Infected
Page 18 and 19: Mortality
Page 20 and 21: White spots
Page 22 and 23: Histopathological findings• The h
Page 24 and 25: Histopathological findings12Histolo
Page 26 and 27: Laboratory methods• Diagnostic La
Page 28 and 29: PCR result of assessing the prevale
Page 30 and 31: Differential diagnosis of virus-ind
Page 32 and 33: Farm level biosecurity of WSSV• P
Page 34 and 35: Preventing the entry of WSSV in to
Page 36 and 37: Disease outbreak & its control• Q
Page 38 and 39: EradicationsEradication may not be
Page 40 and 41: Control & MitigationIf infection is
Page 42 and 43: Code of Practice 1388/44/01(summari
Page 46 and 47: DiscussionCurrent achievements and
Page 48: Thank You For Your Attention !

A review on White Spot Disease in penaeid ... - Middle East - OIE

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