Diagnosis of PRRS
Any tentative clinical diagnosis then should be confirmed by detection of PRRSV (infectious virus, viral antigens and/or viral genomic material) in affected pigs using laboratory methods in conjunction with typical lesions.
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Any tentative clinical diagnosis then should be confirmed by detection of PRRSV (infectious virus, viral antigens and/or viral genomic material) in affected pigs using laboratory methods in conjunction with typical lesions.
PCR is expensive relative to other diagnostic methods.It should be kept in mind that a positive result on PCR indicates the presence of viral RNA and does not necessarily indicate the presence of infectious PRRSV.
A definitive diagnostic evaluation of PRRS with respect to clinical disease requires that serological information be interpreted in combination with results from other virus assays.