Taxis assays measure directional movement of mosquitoes to olfactory cues

Parasites & Vectors

Table 1 Mosquito activation and taxis in the semi-field

Treatment	Distance	Total	Activated i.e. responded		Towards
		n	n	%*	n	%**
Control	20 m	215	53	25%	19	36%
	50 m	200	59	30%	21	36%
	70 m	199	72	36%	22	31%
	100 m	203	80	39%	27	34%
CO ₂	20 m	212	96	45%	56	58%
	50 m	198	77	39%	50	65%
	70 m	201	89	44%	37	42%
	100 m	199	106	53%	32	30%
Blend	20 m	203	99	49%	62	63%
	50 m	192	91	47%	57	63%
	70 m	210	84	40%	43	51%
	100 m	200	67	34%	29	43%
Human	20 m	211	96	46%	54	56%
	50 m	202	86	43%	42	49%
	70 m	210	110	52%	38	35%
	100 m	198	87	44%	17	20%

* Of total ** of total activated.
Number and proportion of female Anopheles gambiae s.s. responding to stimulation (i.e. flying out of the middle chamber) and flying towards the point of stimulation (negative control and three stimuli) obtained from four replicates at four distances in the semi-field tunnel (Experiment 1). n indicates the number of mosquitoes, % indicates the proportion of mosquitoes.

ISSN: 1756-3305