Communicable vs. Non-Communicable Diseases
Agent-Host-Environment
Modes & Types of Transmission
Levels of Prevention
CHN Role in Disease Control
100

This type of disease is typically chronic, not spread person-to-person, and includes conditions like diabetes and heart disease.

What is non-communicable disease?

100

This part of the epidemiological triangle includes bacteria, viruses, and parasites.

What is the agent?

100

HIV can be passed from mother to child during childbirth. This is called:

What is vertical transmission?

100

This level of prevention includes childhood vaccinations.

What is primary prevention?


100

Certain diseases must be reported to health authorities (e.g., measles), this is called...

What is a notifiable disease?


200

This organization in Canada leads national surveillance and control of communicable diseases.

What is the Public Health Agency of Canada (PHAC)

200

The term for immunity acquired through vaccination or previous infection.

What is acquired immunity?

200

This route of horizontal transmission includes droplets, like with influenza.

What is airborne transmission?


200

This level of prevention focuses on early detection and stopping the spread.

What is secondary prevention?


200

CHNs can help implement protocols for outbreak containment, this is called...

What is infection control?


300

An example of a communicable disease that was eradicated worldwide in 1980.

What is smallpox?

300

These environmental changes can reduce disease transmission (e.g., sanitation, clean water).

What are environmental interventions?

300

This disease can be spread by contaminated food or water, making it a common vehicle transmission example.

What is hepatitis A?


300

This level includes DOT (Directly Observed Therapy) for TB patients.

What is tertiary prevention?


300

This CHN activity involves identifying and informing people who have been in contact with an infected person.

What is contact tracing?


400

What term is used to describe a disease that is now absent worldwide?

What is eradication?

400
The ability of the agent to cause illness is referred to as

What is pathogenicity?

400

This kind of organism spreads diseases like Lyme disease or West Nile virus.

What is a vector?


400

Screening and contact tracing are examples of this level of prevention.

What is secondary prevention?


400

CHNs use this care framework to reduce stigma and re-traumatization in clients with STBBIs.

What is trauma- and violence-informed care (TVIC)?


500

This term refers to a disease that was once widespread, then reduced to zero in a defined area but still exists elsewhere.

What is elimination?

500

The three host factors are...

What is the immunity, resistance, and susceptibility?

500

This type of transmission occurs through shared needles or blood transfusion.

What is common vehicle transmission?

500

This level of prevention aims to prevent recurrence or further complications from a disease.

What is tertiary prevention?

500

CHNs promote this form of community immunity by increasing vaccine uptake.

What is herd immunity?