Table 2.

Results obtained for the detection and enumeration of different pathogens in study sites.

	E. coli (CFU/fly)	Enterobacteriaceae (CFU/fly)	Staphylococcus coagulase positive (CFU/fly)
Study site 1
Animal feeding area	6.0 × 103	1.3 × 104	2.0 × 103
	1.8 × 104	4.0 × 103	3.0 × 102
	1.1 × 104	EN: 1.3 × 101	2.2 × 102
		<1.0 × 101
Milking area	2.0 × 103	1.5 × 103	7.2 × 102
	EN: 1.4 × 101	3.2 × 104	1.0 × 102
	<1.0 × 101
	>3.0 × 106	4.2 × 103	4.8 × 101
	>3.0 × 106
Workers feeding area	<1.0 × 101	7.0 × 101	0.5 × 101
Study site 2
Kitchen	<1.0 × 101	EN: 1.1 × 101	<1.0 × 101
	<1.0 × 101	<1.0 × 101
	<1.0 × 101	<1.0 × 101	<1.0 × 101
	<1.0 × 101	<1.0 × 101	<1.0 × 101
Study site 3
Kitchen	<1.0 × 101	3.8 × 101	EN: 1.3 × 101
			<1.0×101
Dog area	<1.0 × 101	<1.0 × 101	3.8 × 102
Study site 4
Barn	1.6 × 103	1.5 × 103	1.5 × 103
Study site 5
Poultry house	3.6 × 102	8.8 × 101	<1.0 × 101
Study site 6
Rabbit breeding	<1.0 × 101	1.7 × 103	<1.0 × 101

EN: estimated number. Each sample was constituted by 5 flies. Results are presented in CFU/fly. L. monocytogenes was beyond the detection limit (<1.0 × 10¹ CFU/fly) in all samples.