Transmissions
Disease Cases
Agents
Carriers
Prevention and Control
100

Disease transmission through contaminated objects or substances, such as food or water.

What is a vehicle-born transmission?

100

An instance of a particular disease or health condition

What is a case?

100

An organism that causes disease

What is a pathogen?

100

A person or animal that harbors a pathogen without showing symptoms but can spread the disease.

What is a carrier?

100

Actions taken to prevent the onset of disease.

What is primary prevention?

200

Disease transmission through vectors like mosquitoes

What is vector transmission?

200

The first case of a disease in a population

What is a primary case?

200

The ways in which a disease is spread

What are modes of transmission?

200

A carrier that actively spreads the disease.

What is an active carrier?

200

Efforts involving direct actions, such as vaccination.

What is Active primary prevention?

300

Disease transmission through droplets or particles in the air.

What is airborne transmission?

300

A person who acquires the disease from the primary case

What is a secondary case?

300

The process by which an infectious disease is transmitted.

What is the chain of infection?

300

Carriers who do not show symptoms but can spread the disease

What is a healthy carrier?

300

Measures such as public health policies and regulations.

What is Passive primary prevention?

400

Disease spread through direct physical contact

What is direct transmission?

400

A person who shows signs of a disease but has not yet been confirmed as a case.

What is a suspect case?

400

The path by which a pathogen leaves its host

What is a portal of exit?

400

A person who has recovered from a disease but can still transmit it.

What is a Convalescent carrier?

400

Actions taken to detect and treat disease early

What is secondary prevention?

500

Disease spread through an intermediate object or organism

What is indirect transmission?

500

The first identified case in a group of related cases

What is an index case?

500

A model that shows the interaction between the agent, host, and environment in causing disease.

What is an Epidemiology triangle?

500

A person who can spread the disease during the incubation period, before symptoms appear

What is an incubatory carrier?

500

Actions taken to reduce the impact of an ongoing illness.

What is tertiary prevention?

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