Preventative Measures
The Chain of Infection Examples
An Epidemiologist's Vocabulary
Types of Carriers
Modes of Transmissions
100

This is the process of containing and limiting any elements that may lead to infection or damage.

What is primary prevention?

100

This phase can include bacteria, viruses or parasites

What is an infectious agent?

100

Excessive reports of illness or similar health related events in a community or region.

What is an epidemic?

100

Someone who has been exposed to a pathogen and it resides in their body, even if they have recovered.

What is an active carrier?

100

This happens when droplets or dust carry a pathogen to a host and infect them.  

What is airborne transmission?

200

This type of prevention does not contain a change in behavior or habit from the individual.

What is passive primary prevention?
200

This is a person or animal who receives the pathogen and gets sick/infected from it.

What is a susceptible host?

200

A continuation of an epidemic that spreads to other populations such as countries and continents

What is a Pandemic?

200

A person who has been exposed to a pathogen and carries it and, when in the beginning of the disease stages, shows symptoms and can pass the disease along.

What is an incubatory carrier?
200

Transmission in which an arthropod (bug) spreads the pathogen to a susceptible host. 

What is vector-borne transmission?

300

This type of prevention includes health screenings and detection agents to assist in the findings of disease.

What is secondary prevention?

300

This is how the pathogen lives one host to find its way to infect another susceptible host by a few modes such as saliva, blood, or feces.

What is a portal of exit?

300

An epidemic that refers to a localized, confined area.

What is an outbreak?

300

An individual who has become infected with a pathogen but does not show symptoms or become actively ill.

What is a healthy carrier? OR What is a passive carrier?

300

This is when an agent is carried by an intermediate object, organisms or way to a host who acquires the disease.

What is indirect transmission?

400

A type of prevention that works by restricting further disability after a disease or injury has previously resulted in harm.

What is tertiary prevention?

400

This is where the pathogen resides and can include humans, animals, food, etc

What is a reservoir?

400

A disease occurring in a scattered, non-conformed matter. Not geographically confined.

What is sporadic?

400

A person who holds a pathogen and can infect others even if they are in the recovery phase. 

What is a convalescent carrier?

400

This transmission happens through objects or material, food or water.

What is vehicle-born transmission?

500

This is an example of what type of prevention: When someone starts to exercise to help improve their cardiovascular system if they have a problem with their heart such as heart disease.

What is active primary prevention?

500

This step includes how the pathogen can travel whether it be by objects, air, or direct contact.

What is a mode of transmission?

500

A disease that continuously remains within a region or community/group of people

What is endemic?
500

An individual who has been exposed to a pathogen and carries it and is able to distribute the disease in different areas and times.

What is an intermittent carrier?

500

This type of transmission occurs when a pathogen changes and transforms inside a host/vector during its life cycle and before being transmitted to a new host.

What is biological transmission?