What Are Emerging Diseases

Multiple Choice

What are emerging diseases?

A) were previously under control, but are now showing increased incidence
B) were previously found only in other mammals but are now starting to infect humans
C) diseases that were present hundreds of years ago but due to increased contact with fossils are now becoming active again
D) new or newly identified infections in a population
E) infections that were central to one location but are now beginning to spread for unknown reasons