Microbe Roles in Infectious Disease

Question 1

pathogen

Answer 1

usually a virus, bacteria, fungi, protozoa or helminth (parasite), that infects body tissue and causes disease

**all parasites are typically referred to as pathogens, BUT parasites are NOT the only type of pathogen

Question 2

emerging diseases

Answer 2

newly identified diseases that are becoming more prominent

Question 3

pandemic

Answer 3

an epidemic that has spread across a wide geographic area (i.e. continents and even the world)

Question 4

zoonosis

Answer 4

infectious disease, derived from animals that can spread to humans via direct or indirect contact

Question 5

reemerging diseases

Answer 5

older, well-known diseases that are increasing in occurrence