Emerging Diseases Are

Emerging diseases are

A) infectious diseases that were not previously found in humans and typically jump from an animal host to humans.
B) infectious diseases that existed in the past but for a variety of reasons are increasing in incidence.
C) infectious diseases that were previously found in humans and typically jump from a human host to animals.
D) non-infectious diseases that have transformed into infectious diseases.
E) hidden diseases that are finally being detected through technology.