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Table 1 Findings from entomological surveys performed in storm drains of four neighbourhoods in Salvador, Brazil in 2015

From: Storm drains as larval development and adult resting sites for Aedes aegypti and Aedes albopictus in Salvador, Brazil

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)