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Table 1 Annual spray status of districts around the Lake Victoria basin from 2015 to 2017, showing number of structures sprayed and percentage of total structures sprayed

From: Malaria vector species composition and entomological indices following indoor residual spraying in regions bordering Lake Victoria, Tanzania

Region District 2015 2016 2017
Kagera Ngara Sprayed
37,240 (98.7%)
Sprayed
52,885 (97.6%)
Sprayed
61,422 (97.3%)
  Biharamuloa Sprayed
42,767 (93.3%)
Not sprayed Not sprayed
  Muleba Sprayed
81,294 (98.6%)
Not sprayed Not sprayed
  Chato Sprayed
53,899 (92.5%)
Sprayed
73,249 (95.8%)
Sprayed
83,163 (90.7%)
  Missenyi Not sprayed Sprayed
44,111 (97.3%
Sprayed
49,494 (97.3%)
  Bukoba Rural Not sprayed Sprayed
63,346 (99.4%)
Sprayed
69,083 (98.5%)
Mwanza Magu Sprayed
58,234 (91.8%)
Not sprayed Not sprayed
  Misungwi Sprayed
47,638 (92.4%)
Not sprayed Not sprayed
  Sengerema Not sprayed Sprayed
97,012 (92.3%)
Sprayed
122,476 (94.6%)
  Kwimba Not sprayed Sprayed
71,733 (90.3%
Sprayed
90,634 (95.9%)
Simiyu Busegab Not sprayed Not sprayed Not sprayed
Mara Rorya Sprayed
77,228 (91.6%)
Not sprayed Not sprayed
  Musoma Rural Not sprayed Sprayed
35,151 (95.8%)
Sprayed
40,981 (93.4%)
  Butiama Not sprayed Sprayed
50,066 (94.9%)
Sprayed
58,386 (94.3%)
  Tarimea Not sprayed Not sprayed Not sprayed
Geita Geita Town Council Sprayed
21,363 (96.6%)
Sprayed
(approx. 20,000 by Geita Gold Mine)
Sprayed
(approx. 20,000 by Geita Gold Mine)
  Nyang'hwale Not sprayed Not sprayed Sprayed
50,099 (95.5%)
  Bukombeb Not sprayed Not sprayed Not sprayed
Mainland Total 419,753(94.2%) 487,553(94.9%) 625,738(95.1%)
  1. aControl for 2017 entomological survey
  2. bControl for 2016, 2017 entomological survey