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Table 1 Comparison between the IFA and ELISA for field sera

From: Development and validation of an ELISA using a protein encoded by ORF2 antigenic domain of porcine circovirus type 2

   ELISA
  Result Negative Positive
IFA negative 2.43%(7/288) 0.347%(1/288)
IFA positive 6.25%(18/288) 90.97%(262/288)