Table 1 Findings from entomological surveys performed in storm drains of four neighbourhoods in Salvador, Brazil in 2015
Survey characteristics | Piatã | Cabula | Brotas | Pituba | ||||
|---|---|---|---|---|---|---|---|---|
Survey date (day/month of 2015) | 10 & 13/Mar | 28 & 29/Mar | 06 &12/May | 27/Jul | 11/Jun | 29/Jul | 14/Jul | 31/Jul |
Average precipitation (mm) during 7 days prior to survey | 2.7 | 60.3 | 51.4 | 54.4 | 87.4 | 47.4 | 79.6 | 36.8 |
No. of surveyed storm drains | 52 | 52 | 35 | 34 | 18 | 17 | 16 | 17 |
No. (%) of storm drains with accumulated water | 38 (73.1) | 48 (92.3) | 5 (14.3) | 2 (5.9) | 11 (61.1) | 9 (52.9) | 3 (18.8) | 2 (11.8) |
Average volume (liters) of water | 32.2 | 51.0 | 28.7 | 45.0 | 36.5 | 60.4 | 19.7 | 0.0 |
No. (%) of water-containing storm drains with larvae/pupae of | ||||||||
Aedes aegypti | 11 (28.9) | 1 (2.1) | 1 (20.0) | – | – | – | – | – |
Aedes albopictus | – | – | 2 (40.0) | 1 (50.0) | – | – | – | – |
Other mosquitoes | 19 (50.0) | 2 (4.2) | 1 (20.0) | 1 (50.0) | – | – | 1 (6.3) | – |
No. (%) of storm drains with adults of: | – | – | – | – | – | |||
Aedes aegypti | 8 (15.4) | 2 (3.8) | 1 (2.9) | – | – | – | – | – |
Aedes albopictus | – | – | 8 (22.9) | 1 (2.9) | – | – | – | – |
Other mosquitoes | 12 (23.1) | 8 (15.4) | 9 (25.7) | 1 (2.9) | – | – | – | – |