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A double antibody enzyme‐linked immunosorbent assay (ELISA) for the detection of infectious pancreatic necrosis virus (IPNV) is described. The sensitivity of the assay reached 102 TCID50 per 0·1 ml of culture fluid. The specificity of anti‐IPNV sera and of the assay was confirmed by agar‐gel immunodiffusion, by the direct immunoperoxidase technique for the deletion of IPNV in tissue cultures and by the ELISA inhibition test. High values of specific inhibition (over 90% at serum dilutions 1:40–1:2560) and low values of non‐specific inhibition (8·4% at serum dilution 1:160) demonstrated the quality of the rabbit anti‐IPNV serum. The results of ELISA agreed well with those of virological examinations. The potential of ELISA for investigations of a large series of field samples is discussed.
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Rodák et al. (1988) studied this question.
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