TABLE 3.

Prevalence of Giardia duodenalis and Cryptosporidium spp. in muskoxen (Ovibos moschatus) and sheep (Ovis aries) from Greenland by location, season and age group ^a

		Giardia duodenalis		Cryptosporidium spp.
Species/season/location/age group	No. of animals tested	No. positive	% positive (CI b )	No. positive	% positive (CI)
Muskox
Summer
Zackenberg
Calf	10	0	0.0 (0.0–25.9)	0	0.0 (0.0–25.9)
Subadult	2	0	0.0 (0.0–77.6)	0	0.0 (0.0–77.6)
Adult	43	0	0.0 (0.0–8.2)	0	0.0 (0.0–8.2)
Unknown	3	0	0.0 (0.0–56.2)	0	0.0 (0.0–56.2)
Total	58	0	0.0 (0.0–6.2)	0	0.0 (0.0–6.2)
Kangerlussuaq
Calf	5	1	20.0 (3.6–62.4)	1	20.0 (3.6–62.4)
Subadult	11	3	27.3 (9.7–56.6)	0	0.0 (0.0–25.9)
Adult	23	2	26.1 (12.6–46.5)	0	0.0 (0.0–14.3)
Unknown	2	1	50.0 (9.5–90.6)	0	0.0 (0.0–65.8)
Total	41	7	26.8 (15.7–41.9)	1	2.4 (0.4–12.6)
Ivittuut
Calf	2	0	0.0 (0.0–65.8)	1	50.0 (9.5–90.6)
Subadult	12	0	0.0 (0.0–24.3)	0	0.0 (0.0–24.3)
Adult	33	0	0.0 (0.0–10.4)	3	9.1 (3.1–23.6)
Unknown	8	0	0.0 (0.0–32.4)	0	0.0 (0.0–32.4)
Total	55	0	0.0 (0.0–6.5)	4	7.3 (2.9–17.3)
Winter
Kangerlussuaq
Calf	4	0	0.0 (0.0–49.0)	0	0.0 (0.0–49.0)
Subadult	17	0	0.0 (0.0–18.4)	0	0.0 (0.0–18.4)
Adult	39	0	0.0 (0.0–9.0)	0	0.0 (0.0–9.0)
Unknown	18	0	0.0 (0.0–17.6)	0	0.0 (0.0–17.6)
Total	78	0	0.0 (0–4.7)	0	0.0 (0–4.7)
Sheep
Autumn
Narsaq
Lamb	28	16	57.1 (39.1–73.5)	1	3.6 (0.6–17.7)
Adult	15	0	0.0 (0.0–20.4)	0	0.0 (0.0–20.4)
Total	43	16	37.2 (24.4–52.1)	1	2.3 (0.4–12.1)

^a Muskox: calf < 1 year, subadult $\ge$ 1 and < 3, adult $\ge$ 3; sheep: lamb: < 1, adult $\ge$ 1.

^b 95% confidence interval.