Table 3.1 Summary of strategies used for each of the response options for white spot disease Control method Strategy Eradication Containment Mitigation Quarantine and movement Yes Yes No controls Declared restricted and Yes No No control areas Zoning n.a. Yes No Movement controls within declared area or infected Yes Yes n.a. zone Movement controls out of declared area or infected Yes Yes n.a. zone Destruction of clinically Yes Yes Yes diseased prawns Destruction of unexposed Optional No No prawns Destruction or harvest with on-farm cooking of exposed In free zones or potentially exposed but Yes No only clinically normal prawns, depending on size On-farm processing (e.g. by Yes Optional Optional cooking) Disposal of infected prawns and wastes that cannot be Yes Yes n.a. cooked on-farm Decontamination Required Optional Optional Surveillance Yes Yes Yes Tracing Yes Optional No WSSV screening of Yes Yes Yes broodstock and postlarvae Closed-farming systems n.a. Yes Yes Partial recirculation farming n.a. No Yes systems Specific farm-level hygiene Yes Yes Yes measures Specific farm-level Yes Yes Yes biosecurity measures n.a. = not applicable; WSSV = white spot syndrome virus
Table 3.1 Summary of strategies used for each of the response options for white spot disease Strategy Control method Eradication Containment Mitigation Quarantine and movement controls Yes Yes No Declared restricted and control areas Yes No No Zoning n.a. Yes No Movement controls within declared area or infected zone Yes Yes n.a. Movement controls out of declared area or infected zone Yes Yes n.a. Destruction of clinically diseased prawns Yes Yes Yes Destruction of unexposed prawns Optional No No Destruction or harvest with on-farm cooking of exposed or potentially exposed but clinically normal prawns, depending on size Yes In free zones only No On-farm processing (e.g. by cooking) Yes Optional Optional Disposal of infected prawns and wastes that cannot be cooked on-farm Yes Yes n.a. Decontamination Required Optional Optional Surveillance Yes Yes Yes Tracing Yes Optional No WSSV screening of broodstock and postlarvae Yes Yes Yes Closed-farming systems n.a. Yes Yes Partial recirculation farming systems n.a. No Yes Specific farm-level hygiene measures Yes Yes Yes Specific farm-level biosecurity measures Yes Yes Yes n.a. = not applicable; WSSV = white spot syndrome virus
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