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Why Vaccines Fail

2013-12-02 20:01:00| National Hog Farmer

By Kent Schwartz, DVM, Iowa State University Veterinary Diagnostic Laboratory Midwestern grow-finish swine are commonly vaccinated for endemic diseases such as porcine circovirus type 2 (PCV2), Mycoplasma hyopneumonia (M. hyo) and Lawsonia intracellularis (ileitis). Vaccinations are not expected to eliminate infections from the herd, but are expected to decrease the severity of clinical disease and associated performance losses. Producers or veterinarians occasionally get the sense that a vaccine is not working for a particular disease. Does that mean it is a vaccine failure? Or is it a vaccination failure? read more

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Category:Agriculture and Forestry

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