Chain of Infection Flashcards
How many steps are in the Chain of Infection?
6
What is the first step?
Infectious Agent
Infectious agent
Disease causing agent; pathogen
Example of an infectious agent
Virus, Ebol, bacteria
2nd step
Reservoir
Reservoir
Where the infectious agent lives
Examples of reservoirs
Human, Animal, Surfaces/Objects (fomites), etc
3rd step
Portal of Exit
Portal of Exit
How the infectious agent leaves the body
Examples of portal of exit
sneezing, vomiting, blood, urine, mucous discharge
4th step
Mode of Transmission
Mode of Transmission
The way the infectious agent can be transmitted
Describe the two types of contacts in Mode of Transmission
Direct contact - Physical contact
Indirect contact - Surfaces and vectors
What are vectors
Animals, insects, or parasites that carry an infectious agent
Examples of Mode of Transmission
Kissing, shaking hands, flies