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

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

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

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.

About this article

Appeared in

Veterinary Microbiology 122 (2007), 97-107

Authors

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

Summary

Single and double vaccination results in earlier seroconversion and higher percentage of Mh seropostive pigs compared to control group. At slaughter, double vaccinated pigs show lower percentage of EP compatible gross lung lesions and lower Mh prevalence at upper respiratory tract sites (nasal cavity and tonsil) than control pigs.

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