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Table 4 Relationship between PCR and expert laboratory microscopy with Plasmodium falciparum and Plasmodium vivax parasite densities of less than 100 parasites/μl.

From: Comparison of PCR and microscopy for the detection of asymptomatic malaria in a Plasmodium falciparum/vivax endemic area in Thailand

Expert Microscopy Resμlt P. falciparum P. vivax
PCR Positivea PCR Negative PCR Positivea PCR Negative
Microscopy Positive 24 94 71 223
Microscopy Negative 96 8,225 251 7,949
  1. a Samples with parasite densities greater than 100/μl by microscopy are not included in this analysis.