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Understanding the Chain of Infection

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Which of the following is the best example of interrupting the "portal of exit" link in the chain of infection?

a)

Washing hands after using the restroom

b)

Covering your mouth and nose when coughing or sneezing

c)

Taking antibiotics as prescribed

d)

Getting vaccinated

2.

What is the most effective way to break the "mode of transmission" link in the chain of infection?

a)

Using personal protective equipment (PPE)

b)

Isolating infected individuals

c)

Disinfecting frequently touched surfaces

d)

Taking vitamins

3.

Which action interrupts the "susceptible host" link in the chain of infection?

a)

Wearing gloves

b)

Receiving immunizations

c)

Using insect repellent

d)

Covering wounds

4.

Which of the following best interrupts the "infectious agent" link in the chain of infection?

a)

Proper food storage

b)

Using antibiotics to kill bacteria

c)

Wearing a mask

d)

Avoiding crowded places

5.

Hand hygiene primarily interrupts which link in the chain of infection?

a)

Portal of entry

b)

Infectious agent

c)

Mode of transmission

d)

Susceptible host

6.

Which of the following is an example of interrupting the "portal of entry" link?

a)

Using sterile bandages on wounds

b)

Taking antiviral medication

c)

Quarantining sick individuals

d)

Cleaning up spills immediately

7.

Why is isolating a patient with a contagious disease an effective interruption strategy?

a)

It destroys the infectious agent

b)

It blocks the portal of exit

c)

It prevents the mode of transmission

d)

It strengthens the host’s immunity

8.

Which of the following best describes how vaccination interrupts the chain of infection?

a)

It eliminates the infectious agent from the environment

b)

It blocks the portal of exit

c)

It makes the host less susceptible to infection

d)

It prevents the agent from entering the body

9.

Wearing gloves when handling blood or body fluids interrupts which link in the chain of infection?

a)

Portal of entry

b)

Portal of exit

c)

Susceptible host

d)

Infectious agent

10.

Which of the following is the best way to interrupt the "reservoir" link in the chain of infection?

a)

Properly storing and preparing food

b)

Covering your mouth when sneezing

c)

Wearing a mask in public

d)

Getting enough sleep