Epidemiology Triangle
The Chain of Infection
Level of Disease
Prevention
Transmission
100
Define environment in the epidemiology triangle

What is impacting the opportunity for exposure?

100

The six points of The Chain of Infection

What is infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host?
100

Define epidemic

What is a generally sudden increase in number of cases of a disease above the normally expected level within a community, population, or region? 

100

Define primary prevention

What is aiming to prevent disease or injury before it occurs?

100

Define direct transmission

What is an infectious agent transferred from a reservoir to a susceptible host by direct contact or droplet spread? 

200

Define host in the epidemiology triangle

What is something that impacts exposure susceptibility and response? 

200

Define portal of exit

What is the path by which a pathogen leaves its host? 

200

Define outbreak

What is a more-than-expected increase in the number of endemic cases?

200

Define active primary prevention with an example

What is a behavior change on the part of the individual in order to prevent a disease or disorder from occuring? (ex. adding exercise to ones lifestyle) 

200

Define indirect transmission

What is the transmission of an infectious agent from a reservoir to a host by suspended air particles, inanimate objects, or animate intermediaries? 

300

Define infectious agent in the epidemiology triangle

What is the cause?

300

Define portal of entry

What is the manner in which a pathogen enters a susceptible host?

300

Define sporadic

What is to occur occasionally or at irregular intervals of time or only in a few geographical places?

300

Define passive primary prevention with an example

What is something that does not require behavior change on the part of the individual in order to prevent a disease or disorder from occuring? (ex. public health efforts to keep water clean) 

300

Define airborne transmission

What is an infectious agent carried by dust or droplet nuclei suspended in air? 

400

Define time in the epidemiology triangle

What is what epidemiologists are working against?

400

Define mode of transmission

What is a way that an infectious agent may be transmitted from its natural reservoir to a susceptible host?

400

Define pandemic

What is an epidemic that has spread over multiple countries or continents and usually affects a large number of people? 

400

Define secondary prevention

What is trying to detect a disease early and prevent it from getting worse? 
400

Define vector-borne transmission

What is something like a mosquito, flea, or tick that may carry an infectious agent through purely mechanical means or may support growth or changes in the agent? 

500

Define epidemiology trangle

What is a tool used for addressing three components that contribute to the spread of disease?

500

Define reservoir

What is a habitat in which the infectious agent normally lives, grows and multiplies

500

Define endemic

What is something that belongs to a particular people or population?

500

Define tertiary prevention

What is trying to improve your quality of life and reduce the symptoms of a disease you already have?

500

Define vehicle-borne transmission

What is something that may indirectly transmit an infectious agent including food, water, biological products, and fomites?