PUBH 302 EXAM 3 2024 WITH 100%
CORRECT ANSWERS
Articulate the difference between infectious and communicable disease - correct answer ✔✔An
infectious disease is caused by different classes of pathogenic organisms which are commonly called
germs; these agents are normally viruses or bacteria.
A communicable disease is an infectious disease that is easily spread from one species to another
A communicable disease is infectious disease that is easily spread from what to what? - correct answer
✔✔one species to another
All __________ diseases are infectious diseases but not all _________ diseases are communicable. -
correct answer ✔✔communicable; infectious
List and define three direct routes of infectious disease transmission. - correct answer ✔✔skin to skin
(herpes type 1)
Mucous to mucous (STIs)
Through breastmilk (HIV)
List and define three indirect routes of infectious disease transmission - correct answer ✔✔food-borne
(salmonella)
water-borne (cholera)
vector-borne (malaria)
What are the three part to the "epi" triad for disease transmission? - correct answer ✔✔agent, host,
environment
What is the agent? - correct answer ✔✔factor such as a micro organism, chemical substance, form of
radiation...whose presence, excessive presence, or absence is essential for the occurrence of a disease
, infectivity - correct answer ✔✔ability to invade and multiply
pathogenicity - correct answer ✔✔ability to cause disease
virulence - correct answer ✔✔ability to cause death
immunogenicity - correct answer ✔✔likelihood of triggering an immune system defense
antigenic stability - correct answer ✔✔condition of an individual who has been infected by a disease,
and then remains immune to further infection in later life. This is the case in most childhood diseases
What is the host? - correct answer ✔✔the person of living organism that can be infected by an
infectious agent
What is the environment? - correct answer ✔✔physical, biological, social, economic components such
as weather, housing, geography, occupational setting, air quality, and food
Explain the conditions that increase the risk of infection - correct answer ✔✔environmental factors such
as altered environment
changes in food production
climate changes
deforestation
ownership of exotic pets
global air travel and exotic journeys
increase use of immunosuppressive/antibiotics
natural disasters
Describe three methods for preventing infection at the personal/individual level - correct answer
✔✔hand washing, personal protective equipment, vaccines
CORRECT ANSWERS
Articulate the difference between infectious and communicable disease - correct answer ✔✔An
infectious disease is caused by different classes of pathogenic organisms which are commonly called
germs; these agents are normally viruses or bacteria.
A communicable disease is an infectious disease that is easily spread from one species to another
A communicable disease is infectious disease that is easily spread from what to what? - correct answer
✔✔one species to another
All __________ diseases are infectious diseases but not all _________ diseases are communicable. -
correct answer ✔✔communicable; infectious
List and define three direct routes of infectious disease transmission. - correct answer ✔✔skin to skin
(herpes type 1)
Mucous to mucous (STIs)
Through breastmilk (HIV)
List and define three indirect routes of infectious disease transmission - correct answer ✔✔food-borne
(salmonella)
water-borne (cholera)
vector-borne (malaria)
What are the three part to the "epi" triad for disease transmission? - correct answer ✔✔agent, host,
environment
What is the agent? - correct answer ✔✔factor such as a micro organism, chemical substance, form of
radiation...whose presence, excessive presence, or absence is essential for the occurrence of a disease
, infectivity - correct answer ✔✔ability to invade and multiply
pathogenicity - correct answer ✔✔ability to cause disease
virulence - correct answer ✔✔ability to cause death
immunogenicity - correct answer ✔✔likelihood of triggering an immune system defense
antigenic stability - correct answer ✔✔condition of an individual who has been infected by a disease,
and then remains immune to further infection in later life. This is the case in most childhood diseases
What is the host? - correct answer ✔✔the person of living organism that can be infected by an
infectious agent
What is the environment? - correct answer ✔✔physical, biological, social, economic components such
as weather, housing, geography, occupational setting, air quality, and food
Explain the conditions that increase the risk of infection - correct answer ✔✔environmental factors such
as altered environment
changes in food production
climate changes
deforestation
ownership of exotic pets
global air travel and exotic journeys
increase use of immunosuppressive/antibiotics
natural disasters
Describe three methods for preventing infection at the personal/individual level - correct answer
✔✔hand washing, personal protective equipment, vaccines
