Cost of intensive routine control and incremental cost of insecticide-treated curtain deployment in a setting with low Aedes aegypti infestation

Abstract

Introduction: Information regarding the cost of implementing insecticide-treated curtains (ITCs) is scarce. Therefore, we evaluated the ITC implementation cost, in addition to the costs of intensive conventional routine activities of the Aedes control program in the city of Guantanamo, Cuba. Methods: A cost-analysis study was conducted from the perspective of the Aedes control program, nested in an ITC effectiveness trial, during 2009-2010. Data for this study were obtained from bookkeeping records and activity registers of the Provincial Aedes Control Programme Unit and the account records of the ITC trial. Results: The annual cost of the routine Aedes control program activities was US$16.80 per household (p.h). Among 3,015 households, 6,714 ITCs were distributed. The total average cost per ITC distributed was US$3.42, and 74.3% of this cost was attributed to the cost of purchasing the ITCs. The annualized costs p.h. of ITC implementation was US$3.80. The additional annualized cost for deploying ITCs represented 19% and 48.4% of the total cost of the routine Aedes control and adult-stage Aedes control programs, respectively. The trial did not lead to further reductions in the already relatively low Aedes infestation levels. Conclusions: At current curtain prices, ITC deployment can hardly be considered an effi cient option in Guantanamo and other comparable environments.

Insecticide treated curtains and residual insecticide treatment to control Aedes aegypti: An acceptability study in Santiago de Cuba

“…In the cluster randomized trial conducted in Santiago de Cuba, RIT coverage was on average 97.2% [ 30 ]. In a similar trial conducted in Guantánamo Province, coverage reported for ITCs was 98.4% [ 24 , 36 ]. These high coverage levels could be a contextual issue linked to the fact that both tools were distributed through the Cuban routine vector control program ( Aa CP).…”

The additional benefit of residual spraying and insecticide-treated curtains for dengue control over current best practice in Cuba: Evaluation of disease incidence in a cluster randomized trial in a low burden setting with intensive routine control

“…In a recent meta-analysis, none of the included randomized studies evaluating dengue adult vector control tools demonstrated a significant impact on dengue incidence, in contrast to other studies with less robust study designs that demonstrated an impact on dengue transmission with the intervention of house screening, IRS and environmental management [ 12 ]. In view of the high cost of RIT and ITC implementation [ 42 , 58 ] and the poor effect on dengue transmission in a low incidence setting shown in this study, the effectiveness should be evaluated in an array of contexts with higher case load and a different set-up of a routine control program.…”

Costos de un programa de control del vector Aedes aegypti en municipios de Colombia: el caso de Girón y Guadalajara de Buga, 2016

“…Las estrategias fueron en general intensivas en el uso de recursos humanos. El 60% de los costos del programa de vectores de Guantánamo, Cuba, correspondió a este recurso 19 , de igual manera para el programa de control de vectores de Colombo, Sri Lanka, el recurso humano representó un 79% de los costos 20 y en Suramérica las rutinas de control de vectores en la ciudad de Salto, Uruguay, fueron intensivas en personal en un 60% y en Machala, Ecuador, fue de un 66% del total de los costos 21 . Estos programas se caracterizaron por estar enfocados al control del vector adulto, criaderos de larvas y trabajo con la comunidad.…”

“…A nivel de costo per cápita, el costo del programa de control de vectores en Girón fue de USD 0,88 y en Guadalajara de Buga fue de USD 0,99, estos valores contrastados con la experiencia internacional se encuentran por debajo de estudios como el de Guantánamo con un costo de USD 5,09 per cápita 19 o para las municipalidades del norte de Italia en la provincia de Emilia-Romagna con EUR 1,2 (USD 1,67 aproximadamente) per cápita 22 . A nivel de costo por estrategias, Guantánamo registró un costo per cápita superior en la estrategia de control de vector adulto con un costo de USD 3,09 per cápita y USD 2 per cápita para el control larvario 19 , mientras que en Girón el costo para esta estrategia fue de USD 0,23 per cápita y de USD 0,5 per cápita para Guadalajara de Buga y para la estrategia de control larvario fue de USD 0,05 per cápita para Girón y USD 0,4 per cápita para Guadalajara de Buga.…”