Table 2.

Prevalence of malaria in different altitudes in six survey periods, Butajira area, Ethiopia, 2008-2010

	Low		Mid-level		High
Survey period	Positive/Total sampled	Prevalence,%	Positive/Total sampled	Prevalence, %	Positive/Total sampled	Prevalence, %	Total, n (%)
21 Oct.-6 Nov.2008	16/1003	1.59	2/353	0.57	2/2060	0.97	20 (11.36)
20 Jan.-4 Feb.2009	6/928	0.65	2/348	0.57	3/1929	0.15	11 (6.25)
19 Jun.- 5 Jul.2009	16/951	1.68	8/339	2.36	3/1937	0.15	27 (15.34)
18 Oct.-11 Nov.2009	43/924	4.76	8/345	2.32	20/1941	1.03	71 (40.34)
27 Jan.-9 Feb.2010	21/920	2.28	6/317	1.89	7/1890	0.37	34 (19.32)
5 Jun. -17 Jun. 2010	4/822	0.49	2/338	0.59	7/1862	0.37	13 (7.39)
Total	106/5548	1.91	28/2040	1.37	42/11619	0.36	176 (100)*

*Two mixed infections of Plasmodium falciparum and Plasmodium vivax were not included