Viable Pseudomonas poae and Clostridium estertheticum cell counts on stainless steel coupons1,2,3,4
	No. of cells (log CFU/cm2)
Genus	Inoculate C.ester on Day 4				Co-inoculate on Day 0
	Day 0	Day 4	Day 6	Day 8	Day 0	Day 2	Day 4
Pseudomonas poae	2.57±0.59	5.99±0.06	6.10±0.24	6.66±0.01	3.37±1.32	4.97±0.69	5.75±0.25
Clostridium estertheticum	N/A	0.81±0.25 A	0.81±0.25 A	0.88±0.40 A	ND	ND	0.81±0.25 A
1 Values are expressed as means ± standard deviations. Values with different uppercase letters in each row are significantly different (P < 0.05).
2 Detection limit: 1.18 log CFU/cm2.
3 N/A, not applicable.
4 ND, not detected.