Answer:
Dengue fever is an epidemic disease
Step-by-step explanation:
Dengue fever is an epidemic disease because "epi" means upon, it refers to the instantaneous spread of infectious disease to a large number of people in a given population within a particular period of time.
In the question provided, the location of the people is continental US, the time periods are March and November 2010, with 66 locally acquired dengue cases.
Thus, the answer is epidemic disease.