Table 2. Staphylococcus aureus in One and Two-Week Hamburger Samples ^a.

Treatments	Indicator Treatment	1-mL Treatment	2-mL Treatment	3-mL Treatment	Standard
Counted bacteria at 10 -5 , first week	2 ± 1 b,c	6.66 ± 2.3 c	0.00 ± 0.00 b	1 ± 1.73 b	103
Counted bacteria at 10 -5 , second week	14.33 ± 13.05 c	6.33 ± 6.65 b,c	0.66 ± 1.15 b	0.00 ± 0.00 b	103

^a Data are presented as mean ± SD. The number of bacteria (CFU/g) is indicated in 1 g of contaminated food. To calculate the numbers it should be multiplied by 10⁶.

^b Sample A.

^c Sample B.