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An indirect fluorescent antibody test for the detection of antibody to swine infertility and respiratory syndrome virus in swine sera. Two serologic methods can detect antibodies: (1) the indirect fluorescent antibody assay, which has a sensitivity of 88% and a specificity of 97%, (8) and (2) the enzyme immunoassay, which has become less popular in light of the high sensitivity and specificity of the indirect fluorescent antibody assay. Although the Western blot is the most common confirmatory test, others are sometime used, including the indirect fluorescent antibody assay (IFA) and the |
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