A Cross-Sectional Study Investigating Cystic Hydatidosis in Slaughtered Cattle of Western Province in Zambia

Table 2

Annual abattoir prevalence of hydatid cysts based on postmortem findings in slaughtered cattle.

Year	No. of slaughtered cattle (n)	No. of positives	Condemned organs	Combined prevalence (%)
1994	3500	144	Lung (142)	4.11 (95% CI: 3.49–4.83)
			Liver (2)
1995	3973	102	Lung (99)	2.59 (95% CI: 2.14–3.13)
			Liver (2)
			Spleen (1)
1996	791	15	Lung (15)	1.90 (95% CI: 1.11–3.19)
			Liver (0)
1999	30497	1103	Lung (1035)	3.62 (95% CI: 3.41–3.84)
			Liver (68)
2000	14268	630	Lung (616)	4.42 (95% CI: 4.09–4.77)
			Liver (14)
2001	2633	123	Lung (121)	4.67 (95% CI: 3.91–5.56)
			Liver (2)
2003	36124	997	Lung (953)	2.76 (95% CI: 2.59–2.94)
			Liver (44)
2004	25604	645	Lungs (539)	2.52 (95% CI: 2.33–2.72)
			Liver (106)
2005	10893	456	Lungs (433)	4.19 (95% CI: 3.83–4.59)
			Liver (23)
2006	12641	197	Lung (182)	1.55 (95% CI: 1.35–1.78)
			Liver (15)
2007	17532	277	Lung (246)	1.58 (95% CI: 1.40–1.78)
			Liver (31)
Total	158,456	4,689		2.96 (95% CI: 2.88–3.04)