Table 1.
Districts | Insecticide used and spray coverage (%) | |||||||
---|---|---|---|---|---|---|---|---|
Calendar year: | Pre-2008 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 |
IRS year: | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
Savelugu-Nanton District (SND) | No IRS | Alphacypermethrin (88.4%) |
Alphacypermethrin (93.6%) |
Deltamethrin (98.7%) |
Alphacypermethrin (87.5%) |
Pirimiphos-methyl CS (89.7%) |
Pirimiphos-methyl CS (91.1%) |
Pirimiphos-methyl CS (68.0%) |
Tolon-Kumbungu District (TKD) | No IRS | Alphacypermethrin (91.3%) |
Alphacypermethrin (93.4%) |
Deltamethrin (98.0%) |
Alphacypermethrin (91.1%) | Alphacypermethrin (91.9%) | No IRS | No IRS |
Tamale Metropolis (TML) | No IRS | No IRS | No IRS | No IRS | No IRS | No IRS | No IRS | No IRS |
Entomological monitoring | ||||||||
All districts | None | Periodic | Monthly (post-IRS) | Monthly | Monthly | Monthly | Monthly | Monthly |
Percentages in parenthesis = yearly IRS coverage of sprayable houses