PPN 302 Week 11 Exam Questions and Answers Already Passed Latest Update 2025-2026
host - Answers the organism harbouring the disease
agent - Answers the microbe that causes the disease
environment - Answers the external factors that cause or allow disease transmission
outbreak - Answers the occurrence of cases of disease in excess of what would normally be
expected in a defined community, geographical area, or season
endemic - Answers an infectious disease that occurs frequently in a particular area
epidemic - Answers the occurrence of more cases of disease than expected in a given area or
among a specific group of people over a particular period of time
pandemic - Answers when a disease spreads rapidly across the globe
syndemic - Answers synergistic interaction of two or more co-existant diseases and the
resultant excess in burden of disease
prevalence - Answers number of cases (new or preexisting)
incidence - Answers number of cases (new)
mortality rate - Answers number of deaths from a specific cause in a given population a time
period
pathogenicity - Answers the agent's capacity to cause a disease in an infected host
virulence - Answers the ability of the agent to produce serious illness
reservoir - Answers the habitat or medium in which an agent lives and/or multiples
communicable diseases - Answers illness caused by a specific infectious agent or its toxic
products that arises through transmission of that agent, or its products from an infected person,
animal, or inanimate source to a susceptible host; either directly or indirectly through an
intermediate plant or animal host, vector, or the inanimate environment
worldwide-infectious diseases create a burden on - Answers individuals, communities, and the
health care system
communicable diseases disproportionately affect - Answers disadvantaged populations,
children, and the elderly
chain of transmission - Answers infectious agent, reservoirs, portal of exit, means of
transmission, portal of entry, susceptible host
, means of transmission - Answers direct or indirect
direct transmission - Answers diseases spread exclusively by direct contact and are unable to
survive for significant periods of time away from a host
indirect transmission - vehicle - Answers spread through contaminated inanimate objects,
surgical equipment, food
indirect transmission - vector - Answers spread through animals capable of transmitting
disease
immunity - Answers resistance on the part of the host to a specific infectious agent
active immunity - Answers body produces its own antibodies following contact with antigen
passive immunity - Answers person receives pre-formed antibodies
herd immunity - Answers resistance of a population or group to the invasion and spread of an
infectious agent
a __% coverage rate is required to break the chain of transmission - Answers 70
epidemiology - Answers the study of the distribution and determinants of health and illness and
the application of knowledge to control the health problem in a specific population
epidemiology involves - Answers the frequency and patterns of disease occurrence in human
populations and the factors that influence these patterns, the measurement of disease
outcomes in relation to a population at risk, and applying the knowledge gained by the studies
to community-based practice
epidemiology helps us - Answers determine the ethology, risk factors, or risk conditions of
disease, study injuries and injury prevention, and determine the need for programs and services
social epidemiology - Answers incorporates the interaction of more quantifiable characteristics
with social and economic conditions
demography - Answers the study of populations, looks at size and density, fertility, mortality,
growth, age distribution, migration, and vital statistics
susceptibility - Answers the vulnerability that determines how a host responds to an agent
variables that influence susceptibility - Answers person, time, place
relative risk ratio measures - Answers the risk of developing a condition
incidence rate in exposed people / incidence rate in non-exposed people
host - Answers the organism harbouring the disease
agent - Answers the microbe that causes the disease
environment - Answers the external factors that cause or allow disease transmission
outbreak - Answers the occurrence of cases of disease in excess of what would normally be
expected in a defined community, geographical area, or season
endemic - Answers an infectious disease that occurs frequently in a particular area
epidemic - Answers the occurrence of more cases of disease than expected in a given area or
among a specific group of people over a particular period of time
pandemic - Answers when a disease spreads rapidly across the globe
syndemic - Answers synergistic interaction of two or more co-existant diseases and the
resultant excess in burden of disease
prevalence - Answers number of cases (new or preexisting)
incidence - Answers number of cases (new)
mortality rate - Answers number of deaths from a specific cause in a given population a time
period
pathogenicity - Answers the agent's capacity to cause a disease in an infected host
virulence - Answers the ability of the agent to produce serious illness
reservoir - Answers the habitat or medium in which an agent lives and/or multiples
communicable diseases - Answers illness caused by a specific infectious agent or its toxic
products that arises through transmission of that agent, or its products from an infected person,
animal, or inanimate source to a susceptible host; either directly or indirectly through an
intermediate plant or animal host, vector, or the inanimate environment
worldwide-infectious diseases create a burden on - Answers individuals, communities, and the
health care system
communicable diseases disproportionately affect - Answers disadvantaged populations,
children, and the elderly
chain of transmission - Answers infectious agent, reservoirs, portal of exit, means of
transmission, portal of entry, susceptible host
, means of transmission - Answers direct or indirect
direct transmission - Answers diseases spread exclusively by direct contact and are unable to
survive for significant periods of time away from a host
indirect transmission - vehicle - Answers spread through contaminated inanimate objects,
surgical equipment, food
indirect transmission - vector - Answers spread through animals capable of transmitting
disease
immunity - Answers resistance on the part of the host to a specific infectious agent
active immunity - Answers body produces its own antibodies following contact with antigen
passive immunity - Answers person receives pre-formed antibodies
herd immunity - Answers resistance of a population or group to the invasion and spread of an
infectious agent
a __% coverage rate is required to break the chain of transmission - Answers 70
epidemiology - Answers the study of the distribution and determinants of health and illness and
the application of knowledge to control the health problem in a specific population
epidemiology involves - Answers the frequency and patterns of disease occurrence in human
populations and the factors that influence these patterns, the measurement of disease
outcomes in relation to a population at risk, and applying the knowledge gained by the studies
to community-based practice
epidemiology helps us - Answers determine the ethology, risk factors, or risk conditions of
disease, study injuries and injury prevention, and determine the need for programs and services
social epidemiology - Answers incorporates the interaction of more quantifiable characteristics
with social and economic conditions
demography - Answers the study of populations, looks at size and density, fertility, mortality,
growth, age distribution, migration, and vital statistics
susceptibility - Answers the vulnerability that determines how a host responds to an agent
variables that influence susceptibility - Answers person, time, place
relative risk ratio measures - Answers the risk of developing a condition
incidence rate in exposed people / incidence rate in non-exposed people
