Understanding the Chain of Infection

What is the first link in the chain of infection?

• Portal of entry

• Infectious agent

• Reservoir

• Mode of transmission

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DOK Level 1: Recall

Which of the following is considered a reservoir in the chain of infection?

• Hand sanitizer

• Human body

• Surgical mask

• Antibiotics

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DOK Level 1: Recall

Identify the term that describes the way an infectious agent leaves the reservoir.

• Portal of entry

• Mode of transmission

• Portal of exit

• Susceptible host

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DOK Level 1: Recall

Which of the following is a mode of transmission in the chain of infection?

• Direct contact

• Immune response

• Vaccination

• Antibiotic resistance

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DOK Level 1: Recall

What is the term for the way an infectious agent enters a new host?

• Portal of entry

• Reservoir

• Mode of transmission

• Portal of exit

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DOK Level 1: Recall

Which of the following is an example of a susceptible host?

• A vaccinated individual

• A person with a strong immune system

• A newborn baby

• A person taking antibiotics

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DOK Level 1: Recall

What is the role of handwashing in breaking the chain of infection?

• It acts as a reservoir

• It strengthens the immune system

• It removes infectious agents

• It serves as a portal of entry

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DOK Level 1: Recall

Which of the following is NOT a link in the chain of infection?

• Infectious agent

• Reservoir

• Immune response

• Susceptible host

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DOK Level 1: Recall

What is the purpose of vaccination in the context of the chain of infection?

• To act as a reservoir

• To eliminate the portal of exit

• To reduce susceptibility of the host

• To increase the mode of transmission

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DOK Level 1: Recall

Which of the following can be considered a portal of exit for an infectious agent?

• Skin

• Blood

• Antibiotics

• Vaccines

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DOK Level 1: Recall