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 efficient option in Guantanamo and other comparable environments.

We present results of research focused on the identification of sites and the analysis of their archaeo-logical evidence in order to reconstruct occupation sequences of marine hunter-gatherer groups at specific localities of Southernmost Patagonia. In this paper we address the characterization of three archaeological sites at Punta Santa Ana area, Strait of Magellan. The studied assemblages are from camp-sites located at different elevations above current sea level, with dates of 6300, 2700 and 700 years BP (not calibrated). These assemblages have been formed in short time periods and have a number of features that suggest discontinuity in technological traditions and subsistence strategies over time.

Presentamos los resultados obtenidos durante una investigación orientada a la identificación de yacimientos y análisis de sus evidencias para reconstruir secuencias de ocupación de cazadores-recolectores marinos en diferentes puntos específicos de Patagonia Meridional. En este trabajo abordamos la caracterización de tres yacimientos arqueológicos de la localidad de Punta Santa Ana, estrecho de Magallanes. Los conjuntos estudiados corresponden a campamentos emplazados a distinta elevación sobre el nivel del mar actual, con antigüedades de 6300, 2700 y 700 años AP (no calibrados). Estos conjuntos habrían sido originados en lapsos cortos de tiempo y presentan una serie de características que sugieren discontinuidad en cuanto las tradiciones tecnológicas y estrategias de subsistencia a lo largo del tiempo.