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第18号公告板 - Spring 2004
VirologyPMWS-Circovirus-PDNS
GHERPELLI M
Cas concrets de maîtrise de la maladie en Italie : deux cas cliniques différents (Field cases of control of PMWS in Italy: two different clinical cases).
L'Europe face á la MAP (Europe facing PMWS) Rencontres Internationales de Pathologie Porcine á Loud?ac (2004), 83-91
Two field cases of PMWS are reported. The early form of the disease occurs in pigs of 6-7 weeks of age and induces particularly acute clinical signs while the late form of the disease affects pigs of 9-10 weeks of age and is characterized by more varied and less acute clinical signs and represents the form more frequently observed in Italy. The early form of PMWS affects herds with an unstable PRRS status, the situation does not improve through the implementation of Madec's 20 control measures, but does improve if early vaccinations are suppressed. The late form of PMWS occurs in more PRRS-stable herds, the implementation of Madec's control measures greatly improves the situation and early vaccinations do not have any influence. The author underlines the fact that distinct conditions bring about either one form of the disease or the other and that it is necessary to adapt the control measures in each case.
