Table 1.

Odds ratios estimates of the presence of foodborne pathogens

	Foodborne pathogen	Bacterial levels in food	Fly’s body part	Odds ratio (95 % CL)
A) House fly eggs
		Medium vs. high		1.9 (0.5, 6.8)
		Medium vs. low		6.0 (1.7, 20.4)
		High vs. low		3.2 (1.1, 9.6)
	C. sakazakii vs. S. enterica			15.5 (2.9, 82.6)
	C. sakazakii vs. E. coli O157:H7			5.7 (1.0, 31.3)
	C. sakazakii vs. L. monocytogenes			3.0 (0.5, 16.4)
	L. monocytogenes vs. S. enterica			5.2 (1.5, 18.7)
	L. monocytogenes vs. E. coli O157:H7			1.9 (0.5, 7.2)
	E. coli O157:H7 vs. S. enterica			2.7 (0.8, 8.6)
B) F1 female adults
	S. enterica	Medium vs. high		2.4 (1.7, 3.4)
			Surface vs. alimentary canal	2.4 (1.7, 3.4)
	C. sakazakii	High vs. medium		2.2 (1.3, 3.5)
			Surface vs. alimentary canal	2.4 (1.5, 3.8)

(A) house fly eggs and (B) first filial (F₁) generation adults