Small-scale field testing of alpha-cypermethrin water-dispersible granules in comparison with the recommended wettable powder formulation for indoor residual spraying against malaria vectors in Benin

Table 1 Number of householders declaring adverse effects two weeks and one month after spraying according to the treatment arm

Time of survey	Treatment	No. of householders surveyed	Number of householders declaring adverse effects^a
Time of survey	Treatment	No. of householders surveyed	Skin itching	Nose running	Sneezing	Eye watering	Headache	Nausea, vomiting, stomach pain	At least one adverse effect
After 2 weeks	WG20	10	1	1	1	1	1	0	2
	WG30	10	0	1	2	0	0	0	2
	WP20	10	1	1	0	0	0	0	1
	WP30	10	0	0	0	0	1	1	1
	control	10	0	0	0	0	0	0	0
After 1 month	WG20	10	0	0	0	0	0	0	0
	WG30	10	0	1	1	0	1	0	1
	WP20	10	0	0	0	0	0	0	0
	WP30	10	0	0	1	0	0	0	1
	control	10	0	0	0	0	0	0	0

^aOnly adverse effects that were declared by at least one householder are listed. Facial burning, eye irritation, excessive sweating, experiencing bad smell after spraying, blurred vision, slurred speech, muscle twitching or other symptoms were not cited by any of the surveyed householders

ISSN: 1756-3305