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Pig Journal Volume: 49
Publication date: June 2002

Proceedings Section

EXPERIENCES WITH PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME (PRRS) CONTROL PROGRAMMES IN ITALY
by P. Martelli

Abstract
This paper seeks to provide an update on some features of Porcine Reproductive and Respiratory Syndrome and particularly on epidemiology, diagnosis and control measures. The transmission, spread and persistence of the virus in carrier animals are still worth investigating, as control protocols (elimination/eradication and stabilisation) primarily depend on these epidemiological aspects. In the context of control programmes, vaccination plays an important role. Before the application of a vaccination policy at herd level, a correct diagnosis is necessary, involving clinical evidence, serology, virological examinations and pathology. A follow-up of the control measures, based on routinely applied diagnostic tests is the key factor for a successful strategy, as the epidemiology of the infection is not static but dynamic. Reports from Italian field cases of control through vaccination are described.

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