Table 6.

Entomological indices of malaria vectors at the three time points in the two villages

Species	Ambohitromby						Miarinarivo
	Time point	HBR	n	(+)	SR (%)	EIR	Time point	HBR	n	(+)	SR (%)	EIR
Anopheles coustani	T1	6.25	68	0	0	0	T1	5.50	65	0	0	0
	T2	3.50	25	2	8.00	0.28	T2	8.08	95	5	5.26	0.43
	T3	13.50	159	0	0	0	T3	25.75	297	7	2.36	0.61
	Total	7.75	252	2	0.40	0.03	Total	13.11	457	12	2.63	0.34
Anopheles arabiensis	T1	5.33	58	3	5.08	0.27	T1	1.33	16	0	0	0
	T2	17.25	166	3	1.78	0.31	T2	6.75	81	3	3.70	0.25
	T3	0.83	10	0	0	0	T3	2.67	32	0	0	0
	Total	7.81	234	6	2.52	0.20	Total	3.58	129	3	2.34	0.08
Anopheles funestus	T1	2.83	35	1	2.86	0.08	T1	0.75	14	0	0	0
	T2	2.17	28	0	0	0	T2	1.17	16	1	6.25	0.07
	T3	3.33	42	0	0	0	T3	4.92	77	1	1.30	0.06
	Total	2.78	105	1	0.95	0.03	Total	2.38	107	2	1.87	0.04
All 3 species	T1	14.42	163	4	2.45	0.35	T1	7.58	94	0	0	0
	T2	22.92	222	5	2.25	0.52	T2	16.00	192	9	4.69	0.75
	T3	17.67	215	0	0	0	T3	33.33	406	8	1.97	0.66
	Total	18.33	600	9	1.50	0.27	Total	18.97	692	17	2.46	0.47

Abbreviations: HBR, human-biting rate (the number of collected mosquitoes per number of human-night (12 at each time point in each village)). The HBR is expressed in bite/human/night (b/h/n); n, the number of anopheline mosquitoes collected by HLCs and analysed by real time PCR. The DNA was extracted from individual head-thorax; (+) corresponds to the number of Plasmodium positive samples confirmed by the TaqMan 18S; SR, sporozoite rate (the number of positive samples divided by the number of analysed samples (n), in %); EIR, entomological inoculation rate (EIR = HBR × SR). It is expressed as infective bite/human/night (ib/h/n)