Volume 12, Number 5—May 2006
Research
Aedes aegypti Larval Indices and Risk for Dengue Epidemics
Table 1
Mean house index (HI) and Breteau index (BI) before, during, and after the dengue outbreak and mean area and population at different geographic levels, Playa Municipality, Havana, 2000
| Level | July–August 2000 (before outbreak) |
September–October 2000 (during outbreak) |
November–December 2000 (after outbreak) |
||||||
|---|---|---|---|---|---|---|---|---|---|
| HI (%) | BI | HI (%) | BI | HI (%) | BI | Area (km2) | Population | ||
| Municipality | 0.87 | 0.92 | 1.53 | 1.73 | 0.69 | 0.73 | 34.90 | 182,485 | |
| Health area* | |||||||||
| With cases (n = 5) | 0.92 | 0.99 | 1.97 | 2.34 | 0.48 | 0.50 | 2.85 | 21,815 | |
| Without cases (n = 4) | 1.03 | 1.08 | 0.89 | 1.06 | 0.87 | 0.93 | 5.13 | 16,320 | |
| Neighborhood† | |||||||||
| With cases (n = 38) | 1.12 | 1.12 | 4.00 | 4.53 | 0.80 | 0.84 | 0.078 | 2,057 | |
| Without cases (n = 38) | 0.64 | 0.69 | 1.39 | 1.52 | 0.74 | 0.81 | 0.062 | 1,466 | |
| Block† | |||||||||
| With cases (n = 38) | 0.33 | 0.34 | 2.40 | 2.92 | 0.62 | 0.66 | 0.010 | 271 | |
| Without cases (n = 38) | 0.13 | 0.20 | 0.35 | 0.42 | 0.32 | 0.33 | 0.008 | 195 | |
*For all areas in the municipality.
†For neighborhoods/blocks included in the study.
