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Table 2 Comparison of the number of samples positive for intestinal protozoan parasites as detected by faecal cyst counts using microscopy (coproscopy) and by RT-PCR (n = 735 for all species)

From: Coproscopy and molecular screening for detection of intestinal protozoa

Species Positive Negative Positive Positive
COP PCR Both methods Both methods PCR/Negative COP COP/Negative PCR
Entamoeba histolytica 9 12 2 716 10 7
Giardia duodenalis 21 105 12 621 93 9
Blastocystis hominis 56 479 48 248 431 8
Dientamoeba fragilis na 187 na na na na
  1. Abbreviations: COP coproscopy; na not applicable