TABLE 2.

Median and interquartile range of the cfu/mL for countable (>25 and <250 colonies) plates of Mycoplasma spp. isolates after 3, 5, 7, and 10 days of incubation in ambient air, 5% CO₂, or 10% CO₂^a,b

Days incubated	Ambient air			5% CO2			10% CO2
	Median	25% quartile	75% quartile	Median	25% quartile	75% quartile	Median	25% quartile	75% quartile
D 10−4
3	7.4 * 103	5.6 * 103	1.3 * 104	1.5 * 104	6.9 * 103	1.7 * 104	1.3 * 104	8.9 * 103	1.5 * 104
5	1.6 * 104	1.1 * 104	1.9 * 104	1.7 * 104	1.6 * 104	1.9 * 104	2.2 * 104	1.6 * 104	2.3 * 104
7	1.1 * 104	5.9 * 103	1.7 * 104	1.6 * 104	1.4 * 104	1.7 * 104	1.5 * 104	1.4 * 104	2.2 * 104
10	1.3 * 104	6.8 * 103	1.5 * 104	1.5 * 104	7.7 * 103	1.8 * 104	1.8 * 104	1.5 * 104	2.3 * 104
D 10−5
3	9.4 * 104	6.5 * 104	9.8 * 104	6.3 * 104	4.0 * 104	1.1 * 105	1.1 * 105	7.0 * 104	1.3 * 105
5	6.4 * 104	4.3 * 104	1.0 * 105	1.2 * 105	8.2 * 104	1.6 * 105	1.3 * 105	7.1 * 104	1.4 * 105
7	8.9 * 104	5.5 * 104	1.1 * 105	9.4 * 104	8.3 * 104	1.5 * 105	1.1 * 105	7.5 * 104	1.4 * 105
10	9.7 * 104	5.1 * 104	1.1 * 105	9.1 * 104	7.9 * 104	1.3 * 105	1.1 * 105	8.1 * 104	1.4 * 105
D 10−6
3	NG	NG	NG	2.9 * 105	2.6 * 105	3.1 * 105	3.0 * 105	2.9 * 105	3.0 * 105
5	6.6 * 105	6.6 * 105	6.6 * 105	3.2 * 105	3.0 * 105	3.8 * 105	3.0 * 105	2.7 * 105	3.4 * 105
7	6.9 * 105	6.9 * 105	6.9 * 105	3.5 * 105	3.2 * 105	3.6 * 105	2.7 * 105	3.1 * 105	3.3 * 105
10	6.8 * 105	6.8 * 105	6.8 * 105	3.5 * 105	3.4 * 105	3.7 * 105	3.0 * 105	2.7 * 105	3.9 * 105

^a Number of observations used for estimating cfu/mL change per incubation day within each dilution due to no quantified counts for plates that were too numerous to count.

^b D = dilution; NG = no growth.