TABLE 1.

Correlation of CFU quantification by standard culturing and QC-PCR

Clinical sample no.a	CFU/g of feces (wet weight) quantified by:
	Culture method	QC-PCR
1	0	0
2	0	0
3	0	0
4	2.3 × 106	2.5 × 106
5	5.5 × 106	3.0 × 106
6	2.1 × 107	3.5 × 107
7	3.1 × 107	3.1 × 107
8	1.0 × 107	1.6 × 107

^aSpecimens were collected in North Carolina, where CFU were quantified by culture; samples were mailed to Florida, where CFU were quantified by QC-PCR.