Table 2.

Average number of A. tetrapteraova by fecal centrifugation flotation per cage and average number of A. tetrapteraworms per mouse at necropsy in CrTac:NCr-Foxn1^nunude mice inoculated with A. tetrapteraova via oral gavage or topically and then treated with different anthelmintic drugs for 8 wk

Method of inoculation of ova	Treatment Group	n	Average no. of ova after treatment				Average no. (range) of worms at necropsy
			Week 1	Week 2	Week 3	Week 4
Oral gavage	NEG	3	0	0	0	0	0 (0)
	POS	6	3	8	9	29	58 (5–110)
	FEN	11	0	0	0	0	0 (0)
	FEN + PIP	11	0	0	0	0	0 (0)
	PIPW	7	0	0	0	0	0 (0)
Topical	POS	8	26	99	46	5	107 (2–144)
	FEN	8	0	0	0	0	0 (0)
	FEN + PIP	12	0	0	0	0	0 (0)
	PIPW	7	0	0	0	0	0 (0)

FEN, 150 ppm fenbendazole in feed; FEN + PIP, 150 ppm fenbendazole and 5 ppm piperazine in feed; NEG, negative-control mice that were inoculated with distilled water only; PIPW, 2.1 mg/mL piperazine in drinking water; POS, positive-control mice that were inoculated with A. tetraptera ova but were not treated.