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Porcine Reproductive and Respiratory Syndrome (view source)
Revision as of 18:35, 27 August 2010
, 18:35, 27 August 2010→Pathology
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==Pathology==
==Pathology==
−Gross necropsy lesions are minimal in the uncomplicated respiratory form of PRRS, but interstitial pneumonitis is a consistent histopathologic finding. There are no gross or histopathologjc lesions noted in aborted or stillborn fetuses,sup>viro</sup>.
+Gross necropsy lesions are minimal in the uncomplicated respiratory form of PRRS, but interstitial pneumonitis is a consistent histopathologic finding. There are no gross or histopathologjc lesions noted in aborted or stillborn fetuses.
+Microscopic lesions of the fetus
+and placenta include umbilical vasculitis, interstitial
+pneumonia, myocarditis and pulmonary arteritis but are
+inconsistent and not diagnostic for PRRS (Lager and
+Ackermann, 1994; Lager and Halbur, 1996; Rossow et
+al., 1996b). There may be residual effects of PRRS
+virus infection in sows manifest as a reduced conception
+rate (Lowe et al., 2006).
==Control==
==Control==