Table 2. Inclusivity and exclusivity as confirmation of E. sakazakii (Cronobacter spp.)

Strain tested in study		Confirmation method
		DFI1)	Nutrient agar	Rapid ID 32E	Real-Time PCR
Pantoea agglomerase		Yellow	Yellow	Non-E.sakazakii	Negative
Salmonella	Enteritidis 18088	Black	Yellow	Non-E.sakazakii	Negative
	Enteritidis 18673	Black	Yellow	Non-E.sakazakii	Negative
	Typhimurium LT2	Black	Yellow	Non-E.sakazakii	Negative
Enterbacter	gergorivae	Yellow	Yellow	Non-E.sakazakii	Negative
	dissolvens E10	Yellow	Yellow	Non-E.sakazkaii	Negative
	helveticus E912	Green	Yellow	Non-E.sakazakii	Negative
	helveticus E440	Weak green	Yellow	Non-E.sakazakii	Negative
	vulneris	Green	Yellow	Non-E.sakazakii	Negative
	sakazkaii N6	Green	Yellow	E. sakazkaii	True positive
	sakazkaii 626	Weak green	Yellow	E. sakazakii	True positive

Druggan-Forsythe-Iversen (DFI, Oxoid) as chromogenic agar was first developed for the purpose of detecting E. sakazakii (Cronobacter spp.) which was shown green colony color on DFI.