The Chain of Infection
Disease Prevention Types
Types of Transmission
Types of Carriers
Types of Cases
100

When germs leave the body through the skin

What is Portal of Exit?

100

Examples of this prevention include health promotion, health education, and health protection

What is Primary Prevention?

100

Immediate transfer of an agent from a host/reservoir to a susceptible host

What is Direct Transmission?

100

An infected person or animal that contains, spreads, or harbors an infectious organism

What is a Carrier?

100

A person who has been diagnosed with a health-related state or event

What is a Case?
200

Food, water, and feces can be classified as this

What is a Reservoir?

200

Examples of this prevention include exercising, not smoking, and reducing dietary fat intake

What is Active Primary Prevention?

200

Transfer of bacteria or viruses on dust particles or on small respiratory droplets that may become aerosolized when individuals sneeze, cough, laugh, or exhale

What is Airborne Transmission?

200

Individual who has been exposed to and harbors a disease-causing organism (pathogen) and who has done so for some time, even though they may have recovered from the disease

What is an Active Carrier?
200

The first disease case in the  population

What is a Primary Case?

300

Indirect transmission to humans by mosquito vectors

What is Modes of Transmission?

300
Activities aimed at health screening and early deetection in order to improve thee likelihood of cure and reduce the chance of disability or death

What is Secondary Prevention?

300
Transfer of disease to a human by a vector

What is Vector-borne Transmission?

300

Individual who have been exposed to and harbor a pathogen but have not become ill or shown any of the symptoms  of the disease

What is a Healthy Carrier? or What is a Passive Carrier?

300

People who become infected from the primary case

What is a Secondary Case?

400

When germs are transmitted through skin into blood through a mosquito bite

What is Portal of Entry?

400

Efforts to limit disability by providing rehab where disease, injury, or a disorder has already occurred and caused damaged

What is Tertiary Preevention?

400

Vector-borne disease transmission processes that occur when the pathogen, in order to spread, uses a host as a mechanism for a ride, for nourishment, or as part of a  physical transfer process

What is Mechanical Transmission?

400

Individual exposed to and  harbor  a pathogen, are in the beginning stages of the disease, are showing symptoms, and have the ability to transmit disease

What is an Incubatory Carrier?

400

Some that has all signs and symptoms of disease or condition but hasn’t been diagnosed

What is a Suspect Case?

500

a process linked by an infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host

What is Chain of Infection?

500

Examples of this prevention include eating vitamin-enriched foods and drinking fluoridated water

What is Passive Primary Prevention?

500

Transfer of a pathogen to a susceptible host by a vector, with the pathogen undergoing reproduction, developmental changes, or both while in the vector

What is Biological Transmission?

500

Individual who has been exposed to  and harbors a pathogen and who can spread the disease at different places or intervals

What is an Intermittent Carrier?

500

The first case brought to  attention by epidemiologist

What is a Index Case?

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