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Chronological study of Mycoplasma hyopneumoniae infection, seroconversion and associated lung lesions in vaccinated and non-vaccinated pigs

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Sibila, M.; Nafrarías, M.; López-Soria, S.; Segalés, J.; Valero, O.; Espinal, A.; Calsamiglia, M.

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Veterinary Microbiology 122 (2007), 97-107

A field trial was conducted to study Mycoplasma hyopneumoniae (Mh) infection dynamics by nested polymerase chain reaction (nPCR) and serology in pigs of a farm affected by enzootic pneumonia (EP). Moreover, correlation of Mh detection at different respiratory tract sÍtes with presence of EP gross and microscopic lung lesions was assessed. These parameters were studied and compared between vaccinated (two doses at 1 and 3 weeks of age versus one dose at 6 weeks of age) and non vaccinated pigs.

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