Lecture 19 - Ch 32 Epidemiology

Question 1

The study of the occurrence, distribution, and determinants of health and disease in a population

Answer 1

Epidemiology

Question 2

host and pathogen survive

Answer 2

chronic infections

Question 3

pathogen can be selective force

Answer 3

acute infections

Question 4

disease occurs in a large number of people in a population at the same time

Answer 4

epidemic

Question 5

disease occurs in a large number of people in a population at the same time (world-wide)

Answer 5

pandemic

Question 6

disease is constantly present in a population, usually at low incidences

Answer 6

endemic

Question 7

The _______ of a disease is the number of new cases of the disease in a given period of time

Answer 7

incidence

Question 8

The ________ of a disease is the total number of new and existing cases in a population in a given time

Answer 8

prevalence

Question 9

Diseased individuals who show no or mild symptoms have ___________

Answer 9

subclinical infections

Question 10

Subclinical individuals are called

Answer 10

carriers

Question 11

the incidence of death in a population

Answer 11

mortality

Question 12

the incidence of disease including fatal and nonfatal diseases

Answer 12

morbidity

Question 13

the organism invades and colonizes the host

Answer 13

infection

Question 14

the time between infection and onset of symptoms

Answer 14

incubation period

Question 15

the disease is at its height

Answer 15

acute period

Question 16

disease symptoms are subsiding

Answer 16

decline period

Question 17

patient regains strength and returns to normal

Answer 17

convalescent period

Question 18

sites in which infectious agents remain viable and from which infection of individuals can occur

Answer 18

reservoirs

Question 19

any disease that primarily infects animals, but is occasionally transmitted to humans

Answer 19

zoonosis

Question 20

Pathogen-infected individuals showing no signs of clinical disease

Answer 20

carriers

Question 21

the resistance of a group to infection due to immunity of a high proportion of the group

Answer 21

herd immunity

Question 22

an infectious agent acquired at a healthcare facility

Answer 22

nosocomial infections

Question 23

Restricts the movement of an individual with an active infection

Answer 23

quarantine

Question 24

Diseases that suddenly become prevalent are

Answer 24

emergent

Question 25

diseases that have become prevalent after having been under control

Answer 25

reemerging

Question 26

the use of biological agents to kill a military or civilian population

Answer 26

biological warfare