Chain of Infection

Area where the infectious agent can live

• mode of transmission

• portal of exit

• reservoir

• portal of entry

Way that infectious agent transmits to another host

• portal of entry

• portal of exit

• reservoir

• mode of transmission

Pathogen that causes disease

• portal of exit

• susceptible host

• infectious agent

• portal of entry

way for causative agent to escape the reservoir

• portal of entry
• portal of exit
• reservoir
• causative agent

person who gets a disease because of weak defenses

• causative agent
• susceptible host
• reservoir
• portal of entry

way for the causative agent to enter a new reservoir

• portal of entry
• portal of exit
• direct
• indirect

person to person contact

• direct
• indirect
• mode of transmission
• reservoir

All are ways to break the Chain of Infection except?

• Handwashing
• Sterilization
• Disinfection
• Reusing gloves

What is the single most effective way to break the Chain of Infection?

• Handwashing
• Sterilization
• Cleaning surfaces
• Nutrition

Which one is not a link in the Chain of Infection?

• Infectious Agent and Portal of Entry
• Portal of Exit and Reservoir
• Microscopic Cause and Infectious material
• Susceptible Host and mode of transmission