From: Increased risks of malaria due to limited residual life of insecticide and outdoor biting versus protection by combined use of nets and indoor residual spraying on Bioko Island, Equatorial Guinea
Time since spraying, months
24-hour mortality, % (N)
2010
2011
Exposed
Controls
2
100 (80)
5 (40)
100 (150)
3
96 (80)
3 (40)
1 (40)
4
73 (80)
81 (97)
8 (40)
5
69 (80)
78 (80)