TABLE 3.

Cell culture FDM and BALB/c mouse infectivity by C. parvum oocysts

Sample	MPN/ml (CI) for:
	Cell culture	BALB/c mouse
Influent	3.11 × 106 (6.89 × 105–9.03 × 106)	1.97 × 105 (6.69 × 104–5.12 × 105)
	2.40 × 106 (4.80 × 105–9.70 × 106)	2.49 × 105 (8.95 × 104–5.78 × 105)
Effluenta	31.09 (6.90–90.30)	<5.64b (0.92–19.05)
	7.41 (1.70–21.50)	20.17 (3.94–42.72)

^aAfter treatment by pulsed white light (broad spectrum) (PureBrite). 

^bNo infection detected.