One should consider that, in the absence of an effective vaccine against all four virus serotypes of dengue, only countries relatively free of
Aedes aegypti can do anything to safeguard their communities from this pestilence. Furthermore,
Aedes albopictus a potential vector of dengue, has been introduced in the American gulf states of Texas, Louisiana, and Florida and in the U.S.-Mexico Border States. There is evidence that
Aedes albopictus could spread further south since Aedes albopictus breeds on the edge of forests and has adapted to the domestic environment throughout several areas of its geographical range -- thus, making it harder to control.