J M Molina Caballero

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An enzyme-linked immunosorbent assay (ELISA) was performed for diagnosis of paratuberculosis in goats, using as antigen a protoplasmic extract (PPA-3). The test was developed on the basis of the results obtained with two serum reference pools, positive and negative respectively. To avoid day-to-day variations, dilutions of the positive serum pool were(More)
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