TABLE 3.

Comparison of results obtained analyzing human stool samples by multiplex PCR and by culture and serotyping

Result by culture and serotyping	No. of samples in the following category by Multiplex-PCR
	Inhibitiona	Negative	Type code 2b	Type code 6	Type code 10	Type code 11	Total
Negative	9	81					90
Salmonella serotype Enteritidis	1	2c	1d	22			26
Salmonella serotype Typhimurium					2	2	4
Total	10	83	1	22	2	2	120

^aInhibition of multiplex PCR.

^bThe type code is obtained by adding all the assigned numbers to the positive amplicons. Each code is specific for a particular band pattern.

^cFalse-negative data in multiplex PCR.

^dMistaken result in multiplex PCR.