Table 1.

The ELISA kit's results compared to the assembled gold standard test's results.

ELISA kit results	The combined gold standard test resultsa
	Positive	Negative	Total
Positive	88	3c	91
Negative	2b	67	69
Total	90	70	160

^aThe combined gold standard test comprising PCR assays and microscopy.

^bThese two samples with false-negative test results were diagnosed as negative by microscopy but Cryptosporidium-positive by the reference PCR assay (group-2).

^cThese three samples with false-positive test results were PCR negative for Giardia and Cryptosporidium and gave no reactions when individually tested by the two subsequent rapid tests.