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Pig Journal Volume: 62
Publication date: June 2009

Clinical Practice

PRRS ERADICATION PROGRAMMES; IS IT WORTHWHILE? REASONS FOR SUCCESS AND FAILURE
G. SANDRI

Abstract
In spite of all the efforts PRRS is still costing the swine industry worldwide several hundred millions (£ or $) every year. The original source of PRRSv in all stages of production is the sow herd. Control must be achieved at sow level before positive control is realised in nursery or finishing sites. Vaccination and other procedures (such as gilt acclimatisation), have been widely used to try to minimise the impact of PRRS in sow herds. Unfortunately results are often disappointing and/or short lived. Whenever technically and economically possible, PRRS eradication programmes represent the best option. PRRSv elimination from swine herds has been accomplished using several different strategies: Depopulation/Repopulation, Test and Removal, Wean and Removal, Herd Closure, Attrition or Roll-over.

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