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BPH 206: FINAL EXAM Questions With Correct Answers

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BPH 206: FINAL EXAM Questions With Correct Answers What is disease transmission? - answerthe passing of a communicable disease from one infected individual or host to another Examples: -Acquiring rabies from a dog bite -Catching influenza from a co-worker -Transmitting syphilis to a sex part...

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  • October 16, 2024
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  • BPH 206
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sirjoel
©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM



BPH 206: FINAL EXAM Questions With
Correct Answers


What is disease transmission? - answer✔the passing of a communicable disease from one

infected individual or host to another




Examples:




-Acquiring rabies from a dog bite

-Catching influenza from a co-worker

-Transmitting syphilis to a sex partner


What is herd immunity? - answer✔Generalized resistance to a particular disease within the

population that arises because the majority of people have developed immunity to the condition


What is low herd immunity? - answer✔Immune members are more susceptible to disease




Immunity=60%

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


Susceptibility= 40%


What is high herd immunity? - answer✔Immune members are less susceptible to disease




Immunity= 85%

Susceptibility= 15%


What is the epi triad model? - answer✔A model that views three elements as responsible for

explaining disease patterns:




Host: a susceptible human or animal who can get the disease and nourishes an agent (one that is

infected)




Agent: entity that causes a disease (microorganism)




Environment: setting where the agent and the host interact


What is a complex epi triad? - answer✔You will have your agent that passes its disease to a

vector (ticks, fleas, mosquitoes). The vector then proceeds to infect a host and an alternate host.


What is a simple epi triad? - answer✔-Host on top of the triangle (e.g. susceptible human)

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


-Environment on the bottom right (e.g. wooded area in back yard)

-Agent on the lower left (e.g. borrelia burgorferi


What are the characteristics of the epi triad that influences how a disease is spread? - answer✔-

Host characteristics: age, immune status, genetic predisposition




-Agent of characteristics: infectivity, pathogenicity (capacity of a microbe to cause a disease) ,

virulence (degree of pathogenicity: severe or not as severe )




Environment: heat, moisture, proximity/interaction of organisms


What is the web of causation? - answer✔schematic of how factors work together to cause disease

(particularly used in chronic diseases/noninfectious diseases




Examples: host immunity, environmental factors, public health policies, access to healthcare,

genetic factors, travel, social networks, occupational exposures


What is endemic? - answer✔the "normal" expected presence of disease in a certain area




Ex: yellow fever in part of South America, malaria in parts of Africa, Common Cold in the USA

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