Table 1 Characteristics and numbers (%) of infested containers found in 12 selected schools during the pre-intervention period
Container | Mean volume (range) (l) | No. of potential breeding containers | No. of infested containers (%) | Percentage based on total infested containers | |
|---|---|---|---|---|---|
Type | Barrel | 167.5 (50–400) | 111 | 25 (22.5) | 9.2 |
Bucket | 29.8 (10–100) | 128 | 13 (11.7) | 4.8 | |
Cement drum | 149.7 (5–800) | 519 | 79 (15.2) | 28.9 | |
Cement tank | 987.4 (20–2000) | 121 | 14 (11.6) | 5.1 | |
Ceramic jar | 93.8 (50–150) | 98 | 21 (21.4) | 7.7 | |
Discarded container | 8.7 (1–150) | 64 | 53 (87.5) | 19.4 | |
Spiritual bowl | 1.0 (1) | 55 | 16 (34.5) | 5.9 | |
Toilet bowl | 14.9 (5–50) | 280 | 44 (15.7) | 16.1 | |
Size | Large (>200 l) | 1039.8 (250–2000) | 127 | 13 (10.2) | 4.8 |
Medium (10–200 l) | 97.9 (10–200) | 1029 | 178 (17.3) | 65.2 | |
Small (<10 l) | 3.5 (1–5) | 220 | 82 (37.3) | 30.0 | |
Place | Indoor | 55.1 (1–2000) | 394 | 63 (16.0) | 23.1 |
Outdoor | 215.8 (1–2000) | 982 | 210 (21.4) | 76.9 | |
Total | 169.8 (1–2000) | 1376 | 273 (19.8) | 100 | |