Chain of Infection

Chain of Infection

by Ms. Wilson

Means of Transmission

​Transmission in a health care setting refers to the passing of a pathogen causing communicable disease from an infected host individual or group to a particular individual or group

Open Ended

What are ways a pathogen can be transmitted from one individual or thing to an uninfected individual?

Means of Transmission

​Direct contact

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​Airborne

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​Injection

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​Ingestion

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​Indirect contact

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​Vector

Multiple Choice

Transmission from an insect such as lyme disease from a tick is an example of

• ingestion

• vector

• airborne

• direct contact

Multiple Choice

Transmission by inhaling microorganisms such as tuberculosis

• ingestion

• vector

• airborne

• direct contact

Multiple Choice

Transmission by touching a person with an infected wound

• vector

• direct contact

• indirect contact

• injection

Multiple Choice

Transmitted from a nonliving object such as a doorknob

• vector

• indirect contact

• direct contact

• injection

Multiple Choice

Transmission through blood and other body fluids

• vector

• direct contact

• indirect contact

• injection

Multiple Choice

Transmission by means of eating of drinking contaminants.

• Vector

• Injection

• Ingestion

• airborne

Means of Transmission

​Direct contact by touching a person with an infected wound

​

​Airborne transmission by inhaling microorganisms such as tuberculosis

​

​Injection of bloodborne transmission through blood and other body fluids

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​Ingestion by means of eating or drinking contaminants

​

​Indirect contact transmitted from a nonliving object such as a doorknob

​

​Vector transmission from an insect such as lyme disease from a tick

Chain of Infection

​

The spread of an infection is described as a “chain,” several interconnected steps that describe how a pathogen moves about.

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​For an infection to develop, each link of the chain must be connected. Breaking any link of the chain can stop the transmission of infection!

Chain of Infection

Chain of Infection