Comparative analysis on relationship between Breteau index and storey in Aedes albopictus L. surveillance

ObjectiveTo ascertain the relationship between Breteau index and storey in Aedes albopictus L.(A.albopictus) surveillance, providing guidance for dengue fever control.

MethodsDensity of A.albopictus larva was surveyed by Breteau index (BI) on different residential floors.

ResultsA total of 744 households were surveyed.Thirty-three positive containers of A.albopictus were found and Breitmap index was 4.44.Bonsai and aquatic plants had the highest positive rate, accounting for 78.79%.There was no statistical difference in Breteau index between different levels of floor households (χ² =1.33, P > 0.05).The positive breeding was also found in high-rise residential households above 6 floors.

ConclusionIt is necessary to strengthen investigation and control on the density of A.albopictus.High-floor surveys should not be ignored either during the epidemic season so as to effectively prevent and control dengue fever.