Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 12, Number 5—May 2006
Research

Aedes aegypti Larval Indices and Risk for Dengue Epidemics

Lizet Sanchez*, Veerle Vanlerberghe†, Lázara Alfonso*, María del Carmen Marquetti*, María Guadalupe Guzman*, Juan Bisset*, and Patrick van der Stuyft†
Author affiliations: *Tropical Medicine Institute "Pedro Kouri," Havana, Cuba; †Institute of Tropical Medicine, Antwerp, Belgium

Main Article

Table 2

Mean BI for case and control blocks before, during, after the dengue outbreak, Playa Municipality, Havana, 2000*

Block July–August 2000 (before epidemic), mean (95% CI)
September–October 2000 (during epidemic), mean (95% CI)
November–December 2000 (after epidemic), mean (95% CI)
BI NBI BImax BI NBI BImax BI NBI BImax
September case blocks (n = 9) 0.53 (0.02–1.75) 1.52 (0.76–2.53) 6.28† (3.29–10.23) 11.95† (2.26–29.27) 10.75† (6.73–15.70) 28.4† (16.1–44.1) 0.63 (0.04–1.70) 0.64 (0.37–0.91) 2.94 (1.71–4.83)
October case blocks (n = 29) 0.29 (0.05–0.72) 1.01 (0.60–1.54) 4.24 (2.48–6.46) 1.39† (0.50–2.71) 3.16† (1.99–4.61) 12.2† (7.79–17.6) 0.66 (0.06–0.91) 0.76 (0.44–1.06) 2.87 (1.50–4.35)
Control blocks (n = 38) 0.20 (0.02–0.58) 0.69 (0.42–1.02) 2.96 (1.71–4.56) 0.42 (0.07–1.05) 1.52 (0.91–2.29) 1.52 (3.57–8.32) 0.33 (0.06–0.82) 0.68 (0.36–1.18) 2.34 (1.43–4.27)

*BI, Breteau index; CI, confidence interval; NBI, neighborhood BI; BImax, maximum BI at the block level for each neighborhood.
†Significantly different from corresponding values for control blocks (p<0.05).

Main Article

Page created: January 12, 2012
Page updated: January 12, 2012
Page reviewed: January 12, 2012
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
file_external