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. 2007 Aug 10;73(19):6299–6304. doi: 10.1128/AEM.00961-07

TABLE 3.

Evaluation of multiplex PCR using representative isolates

Species Serotype No. of isolates Multiplex PCR result for:
ECI ECII ECIII 1/2a 4b L. monocytogenes Listeria genus
L. monocytogenes 4b (ECI) 11 + + + +
4b (ECII) 20 + + + +
4b (non-ECs) 24a + + +
1/2a (ECIII) 4 + + + +
1/2a (non-ECs) 10 + + +
Non-1/2a, 4b 12 + +
L. innocua NAb 2 +
Listeria ivanovii NA 2 +
L. welshimeri NA 2 +
Listeria seeligeri NA 2 +
Salmonella enterica Enteritidis 2
Escherichia coli O157 1
NA 1
Bacillus cereus 2
Bacillus subtilis 2
Bacillus licheniformis 1
Staphylococcus aureus NA 2
a

Two 4b isolates that do not belong to any of the epidemic clones have the ECII marker.

b

NA, not available.