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Table 4 ELISA and IFAT results for not-exposed-to-malaria blood donors

From: A new ELISA kit which uses a combination of Plasmodium falciparum extract and recombinant Plasmodium vivax antigens as an alternative to IFAT for detection of malaria antibodies

   ELISA malaria antibody test
   Positive Equivocal Negative Total
IFAT Positive 0 0 4 4
  Equivocal 0 0 3 3
  Negative 6 1 2138 2145
  Total 6 1 2145 2152
  1. IFAT and ELISA clinical specificities: 99.6% (2145/2152) (CI: 99.4 – 99.9%), equivocal results considered as positive for calculation.