Understanding the Chain of Infection

What is the term for a disease-causing microorganism?

• Reservoir

• Pathogen

• Portal of exit

• Susceptible host

Where does a pathogen live and multiply?

• Portal of entry

• Mode of transmission

• Reservoir

• Susceptible host

How does a pathogen leave its reservoir?

• Portal of exit

• Mode of transmission

• Portal of entry

• Susceptible host

What term describes how a pathogen moves to a new host?

• Portal of exit

• Mode of transmission

• Portal of entry

• Reservoir

How does a pathogen enter a new host?

• Portal of exit

• Mode of transmission

• Portal of entry

• Reservoir

What is a person who can become infected called?

• Pathogen

• Reservoir

• Portal of exit

• Susceptible host

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

• Pathogen

• Reservoir

• Mode of transmission

• Immune response

Which link in the chain of infection involves the environment where the pathogen can survive?

• Pathogen

• Reservoir

• Portal of exit

• Susceptible host

Which link in the chain of infection is directly affected by hygiene practices like handwashing?

• Pathogen

• Reservoir

• Mode of transmission

• Susceptible host

Which link in the chain of infection can be broken by vaccination?

• Pathogen

• Reservoir

• Portal of exit

• Susceptible host