Figure 2: Map of the U.S. showing the areas at risk of dengue outbreaks, based on the approximate distribution of dengue mosquito vectors Aedes aegypti and Aedes albopictus. Map adapted from [28, 29]. The delimited area represents the approximate geographical area in which either dengue mosquito vector (Aedes aegypti and/or Aedes albopictus) have been found present in the USA and are therefore considered to be at risk for the establishment of dengue outbreaks. The noncontiguous states of Alaska and Hawaii are not shown at scale. U.S. territories are not shown.