Chapter 6

Question 1

waterborne disease

Answer 1

an infectious disease acquired through contact with contaminated water

Question 2

vector-borne disease

Answer 2

an infectious disease acquired from organisms that transmit a pathogen from one host to another.

Question 3

infectious diseases

Answer 3

illnesses caused by an invading pathogen such as a bacterium or virus.

Question 4

pathogen

Answer 4

an infectious agent that causes illness or disease

Question 5

public health

Answer 5

the science that deals with the health of human populations

Question 6

epidemiologist

Answer 6

a scientist who studies the causes and patterns of disease in human populations

Question 7

environmental health

Answer 7

the branch of public health that focuses on factors in the natural world and the human-built environment that impact the health of populations.

Question 8

noncommunicable diseases (NCDs)

Answer 8

illnesses that are not transmissible between people; not infectious

Question 9

zoonotic disease

Answer 9

a disease that is spread between infected animals (not merely a vector that transmits the pathogen but another host that harbors the pathogen through its life cycle) and humans.

Question 10

emerging infectious diseases

Answer 10

infectious diseases that are new to humans or that have recently increased significantly in incidence, in some cases by spreading to new ranges.