Table 1.
Characteristics of transmission periods and hotspots
| Period: (cumulative inca), dates, duration | Hotspot status | Number of villages | Cumulative incidence rate a | SMCb (%) |
Weekly average rainfall (mm/week) (SDc) |
Dominant vegetation typed (% village) |
|---|---|---|---|---|---|---|
|
2008 LTP (0.93) 01/01/2008 - 30/06/2008 - 26 weeks |
Hotspot | 19 | 9.82 | 0 (0.00%) | 1.9 (0.99) | Mixed (63.16) |
| Non-Hotspot | 556 | 0.44 | 0 (0.00%) | 1.6 (0.77) | Mixed (59.35) | |
|
2008–2009 HTP (14.88) 01/07/2008 – 12/01/2009 – 28 weeks |
Hotspot | 128 | 33.53 | 28 (21.87%) | 26.41 (1.78) | Mixed (88.28) |
| Non-Hotspot | 447 | 5.46 | 47 (10.51%) | 22.59 (2.46) | Mixed (51.23) | |
|
2009 LTP (0.88) 13/01/2009 – 03/08/2009 – 29 weeks |
Hotspot | 27 | 10.66 | 0 (0.00%) | 10.54 (2.02) | Mixed (96.3) |
| Non-Hotspot | 548 | 0.5 | 0 (0.00%) | 8.26 (1.57) | Mixed (83.58) | |
|
2009–2010 HTP (7.53) 04/08/2009 – 15/02/2010 – 28 weeks |
Hotspot | 62 | 27.04 | 23 (37.1%) | 20.61 (1.79) | Mixed (93.55) |
| Non-Hotspot | 513 | 5.17 | 201 (39.18%) | 18.21 (2.24) | Mixed (83.04) | |
|
2010 LTP (0.83) 16/02/2010 – 12/07/2010 – 21 weeks |
Hotspot | 22 | 12.61 | 0 (0.00%) | 2.43 (1.46) | Mixed (68.18) |
| Non-Hotspot | 553 | 0.41 | 0 (0.00%) | 3.39 (1.58) | Mixed (62.03) | |
|
2010–2011 HTP (29.9) 13/07/2010 – 24/01/2011 – 28 weeks |
Hotspot | 142 | 80.26 | 77 (54.22%) | 23.4 (1.49) | Mixed (57.04) |
| Non-Hotspot | 433 | 19.61 | 294 (67.9%) | 22.95 (2.98) | Mixed (63.97) | |
|
2011 LTP (2.73) 25/01/2011 – 22/08/2011 – 30 weeks |
Hotspot | 43 | 12.69 | 0 (0.00%) | 8.39 (1.25) | Mixed (72.09) |
| Non-Hotspot | 532 | 1.57 | 0 (0.00%) | 9.52 (0.83) | Grasslands (40.79) | |
|
2011–2012 HTP (14.62) 23/08/2011 – 09/01/2012 – 20 weeks |
Hotspot | 105 | 34.35 | 0 (0.00%) | 18.52 (0.51) | Grasslands (35.24) |
| Non-Hotspot | 470 | 9.59 | 0 (0.00%) | 18.93 (1.53) | Mixed (41.70) | |
|
2012 LTP (1.66) 10/01/2012 – 09/07/2012 – 26 weeks |
Hotspot | 10 | 19.16 | 0 (0.00%) | 4.93 (0.69) | Mixed (60) |
| Non-Hotspot | 565 | 1.24 | 0 (0.00%) | 3.61 (0.8) | Mixed (42.83) | |
|
2012 HTP (38.1) 10/07/2012 – 31/12/2012 – 24 weeks |
Hotspot | 147 | 119.24 | 0 (0.00%) | 31.71 (2.36) | Grasslands (59.86) |
| Non-Hotspot | 428 | 25.74 | 0 (0.00%) | 30.49 (1.93) | Mixed (51.17) |
High Transmission Periods (HTP) and Low Transmission Periods (LTP) with cumulative incidence rate, start and end dates, and duration (in weeks); hotspot status of villages (hotspot or non-hotspot); number of hotspot and non-hotspot villages; cumulative incidence rate in hotspot and non-hotspot villages; number and percentage of hotspot and non-hotspot villages that received seasonal malaria chemoprevention (SMC); weekly average rainfall and standard deviation in hotspot and non-hotspot villages; dominant vegetation type (open shrublands, grasslands, croplands, mixed vegetation) in hotspot and non-hotspot villages for each period
a Cumulative incidence rate (cases/100,000 person-weeks)
b Number and percentage of villages that received SMC (seasonal malaria chemoprevention)
c Standard deviation
d Dominant vegetation type for each period