Patterns of Geographic Expansion of Aedes aegypti in the Peruvian Amazon

摘要: Background and Objectives In the Peruvian Amazon, dengue vector Aedes aegypti is abundant in large urban centers such as Iquitos. In recent years, it has also been found a number of neighboring rural communities with similar climatic socioeconomic conditions. To better understand Ae. spread, we compared characteristics communities, houses, containers infested uninfested communities. Methods We conducted pupal-demographic surveys deployed ovitraps 34 surrounding city Communities surveyed were located along two transects: Amazon River 95km highway. We calculated entomological indices, mapped presence, developed univariable multivariable logistic regression models to predict presence at community, household, or container level. Results Large closer Iquitos more likely be aegypti. Within houses had passively-filled often other mosquito genera than without For containers, water tanks/drums solar exposure Maps revealed linear pattern infestation highway, scattered River. identified geographical limit expansion highway 19.3 km south Iquitos. Conclusion geographic spread driven by human transportation networks rivers highways. Our results suggest that development oviposition site availability drive colonization roads. Along rivers, boat traffic long-distance dispersal via unintentional transport mosquitoes on boats.