Increased malaria transmission around irrigation schemes in Ethiopia and the potential of canal water management for malaria vector control

Table 4 Sources of blood meal in female anophelines in the irrigated and non-irrigated villages in the Ziway area, Ethiopia, between November 2009 and October 2010

	An. arabiensis	An. pharoensis	An. coustani	An. funestus
Irrigated villages
Number tested^a	2,101	992	215	58
Positive for human blood (%)	1,678 (80.0)	631 (63.6)	107 (49.8)	21 (36.2)
Positive for bovine blood (%)	593 (28.2)	491 (49.5)	156 (72.6)	45 (77.6)
Unidentified (%)^b	16 (0.8)	21 (2.1)	9 (4.2)	2 (3.4)
Non-irrigated villages
Number tested	234	71	29	-^c
Positive for human blood (%)	171 (73.1)	42 (59.2)	11 (37.9)
Positive for bovine blood (%)	56 (23.9)	38 (53.5)	23 (79.3)	-
Unidentified (%)	13 (5.6)	5 (7.0)	4 (13.8)	-

^aSamples that were positive for both human blood and bovine blood were included in both categories. Hence the total in each row could be more than 100%.
^bUnidentified blood was neither from humans nor from cattle.
^cNo An. funestus were collected in the non-irrigated villages.

ISSN: 1475-2875