Table 2.
Breeding places and infestation level with immature Aedes Aegypti vector per study groups
| Intervention group |
Control group |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | Follow-up 1 | Follow-up 2 | Baseline | Follow-up 1 | Follow-up 2 | |||||||
| Characteristics | Feb–Aug 2013 (wet–dry) | Oct–Dec 2013 (wet) | Mar–Apr 2014 (wet) | Feb–Aug 2013 (wet–dry) | Oct–Dec 2013 (wet) | Mar–Apr 2014 (wet) | ||||||
| Precipitation | 88.6 | 88.7 | 134 | 88.6 | 88.7 | 134 | ||||||
| Clusters | 10 | 4 | 10 | 4 | 10 | 4 | 10 | 4 | 10 | 4 | 10 | 4 |
| Households | 843 | 347 | 801 | 327 | 668 | 288 | 837 | 324 | 771 | 282 | 649 | 284 |
| Inhabitants | 3231 | 1424 | 3157 | 1387 | 2696 | 1196 | 2975 | 1201 | 2898 | 1067 | 2415 | 1094 |
| Containers | 3253 | 905 | 3663 | 1340 | 2365 | 1462 | 2492 | 777 | 2761 | 878 | 1346 | 623 |
| Low tanks (n) | 10.1% (329) | 18.2% (165) | 4.3% (160) | 8.4% (113) | 12.3% (292) | 10.3% (151) | 9.7% (242) | 10.2% (79) | 3.0% (82) | 5.6% (49) | 16.1% (217) | 17.0% (106) |
| Albercas (n) | 25.9% (843) | 35.5% (321) | 19.5% (716) | 21.6% (290) | 26.3% (621) | 18.8% (275) | 33.0% (822) | 38.5% (299) | 23.2% (641) | 26.2% (230) | 43.0% (578) | 37.6% (234) |
| Others (n) | 64.0% (2081) | 46.3% (419) | 76.0% (2787) | 70.0% (937) | 61.4% (1452) | 70.9% (1036) | 57.2% (1428) | 51.3% (399) | 73.8% (2038) | 68.2% (599) | 40.9% (551) | 45.4% (283) |
| Households with pupae | 111 | 40 | 47 | 25 | 45 | 12 | 66 | 26 | 36 | 13 | 16 | 7 |
| Containers with pupae | 121 | 43 | 52 | 29 | 48 | 13 | 68 | 27 | 41 | 14 | 18 | 9 |
| Pupaes | 2932 | 1090 | 2929 | 1727 | 1022 | 276 | 1395 | 506 | 893 | 256 | 575 | 345 |
| Pupae indices | ||||||||||||
| Container index | 3.7% | 4.8% | 1.4% | 2.2% | 2.0% | 0.9% | 2.7% | 3.5% | 1.5% | 1.6% | 1.3% | 1.4% |
| Household index | 13.2% | 11.5% | 5.9% | 7.6% | 6.7% | 4.2% | 7.9% | 8.0% | 4.7% | 4.6% | 2.5% | 2.5% |
| Breteau index | 14.4 | 12.4 | 6.5 | 8.9 | 7.2 | 4.5 | 8.1 | 8.3 | 5.3 | 5.0 | 2.8 | 3.2 |
| Pupae per person index | 0.91 | 0.77 | 0.93 | 1.25 | 0.38 | 0.23 | 0.47 | 0.42 | 0.31 | 0.24 | 0.24 | 0.32 |
| Pupae percentage per container type, relative contributions (n) | ||||||||||||
| Low tank | 10.0 (293) | 16.0 (174) | 36.0 (1054) | 54.0 (933) | 1.0 (10) | 0 | 4.0 (56) | 12.0 (61) | 2.0 (18) | 4.0 (10) | 3.0 (17) | 6.0 (21) |
| Elevated tank | 2.0 (59) | 1.0 (11) | 0 | 0 | 0 | 0 | 0 | 0 | 4.0 (36) | 0 | 0 | 0 |
| Alberca 1 | 41.0 (1202) | 42.0 (458) | 20.0 (586) | 14.0 (242) | 65.0 (664) | 100 (100) | 50.0 (698) | 42.0 (213) | 28.0 (250) | 30.0 (77) | 69.0 (397) | 91.0 (314) |
| Alberca 2 | 23.0 (674) | 31.0 (338) | 39.0 (1142) | 29.0 (501) | 28.0 (286) | 0 | 31.0 (432) | 24.0 (121) | 32.0 (286) | 60.0 (154) | 17.0 (98) | 0 |
| Vessels | 3.0 (88) | 4.0 (44) | 1.0 (29) | 0 | 3.0 (31) | 0 | 0 | 0 | 29.0 (259) | 0 | 2.0 (12) | 3.0 (10) |
| Small buckets | 7.0 (205) | 5.0 (55) | 0 | 0 | 3.0 (31) | 0 | 13.0 (181) | 22.0 (111) | 5.0 (45) | 6.0 (15) | 9.0 (52) | 0 |
| Others (vases, tires, discarded, naturals, etc.) | 14.0 (410) | 1.0 (11) | 4.0 (117) | 3.0 (52) | 0 | 0 | 2.0 (28) | 0 | 0 | 0 | 0 | 0 |
Data collected in the treatment and control groups. It illustrates the overview of the study sites, as well as entomological indices and the relative contributions of specific containers in all 20 clusters and only in the 8 clusters completed until follow-up 2.