Surveillance And Control Of Aedes Albopictus In Epidemiological Risk Areas Of Valencia (Spain)

Abstract:
In Spain Dengue (DENV), Zike (ZIKV) and Chickungunya (CHIKV) are frequently imported by tourists and immigrants infected in endemic countries. The Spanish Ministry of Health has declared DENV, ZIKV and CHIKV as priority notifiable diseases in the country. Research presented here is focused on entomological interventions, surrounding imported cases of DENV, ZIKV and CHIKV, carried out in Valencia, Spain. The objective was to evaluate and control the risk of disease amplification at local scale. Valencia has a population of about 800.000 and has a Mediterranean climate of mild winters and long, hot and dry summers. Aedes albopictus was first recorded in the city in July 2015. Since then, the spread of the species has been constant through the municipality although local authorities have implemented a comprehensive control program based on preventive measures, insecticide treatments, vector monitoring, and social awareness. We present the methodology and results of all entomological interventions associated to imported cases of DENV, ZIKV and CHIKV in 2016. The use of Geographic Information Systems techniques, the procedures of inspections in domestic and public risk environments, the treatment of vector breeding and resting sites, the epidemiological information about imported cases, and the results of vector activity inside the influence range of each imported case will be presented.