TABLE 3.

Cost of preparation of 1 liter of medium

Plate	Cost of supplies ($)a		Labor time (h)	Prepar- ation cost ($)b	Total cost per liter ($)
	Base	Supplements
Campy-Cefex	5.98	20.92	0.40	2.10	28.99
mCCDA	7.25	18.23	0.45	2.36	27.84
Karmali	7.48	13.84	0.45	2.36	23.69
Campy-Line	6.56	7.37	0.61	3.20	17.12
CAMPY	5.61	7.30	0.51	2.65	15.56
mCampy-Cefex	5.98	5.54	0.40	2.10	13.61

^aBased on prices during spring 2004.

^bMinimum wage was calculated at $5.25 per hour.