Chain of Infection Flashcards

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1
Q

How many steps are in the Chain of Infection?

A

6

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2
Q

What is the first step?

A

Infectious Agent

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3
Q

Infectious agent

A

Disease causing agent; pathogen

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4
Q

Example of an infectious agent

A

Virus, Ebol, bacteria

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5
Q

2nd step

A

Reservoir

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6
Q

Reservoir

A

Where the infectious agent lives

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7
Q

Examples of reservoirs

A

Human, Animal, Surfaces/Objects (fomites), etc

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8
Q

3rd step

A

Portal of Exit

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9
Q

Portal of Exit

A

How the infectious agent leaves the body

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10
Q

Examples of portal of exit

A

sneezing, vomiting, blood, urine, mucous discharge

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11
Q

4th step

A

Mode of Transmission

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12
Q

Mode of Transmission

A

The way the infectious agent can be transmitted

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13
Q

Describe the two types of contacts in Mode of Transmission

A

Direct contact - Physical contact
Indirect contact - Surfaces and vectors

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14
Q

What are vectors

A

Animals, insects, or parasites that carry an infectious agent

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15
Q

Examples of Mode of Transmission

A

Kissing, shaking hands, flies

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16
Q

5th step

A

Portal of Entry

17
Q

Portal of Entry

A

The way the infectious agent enters your body

18
Q

Examples of Portal of Entry

A

Breaks in skin, digestive and respiratory tract

19
Q

6th step

A

Susceptible Host

20
Q

Susceptible Host

A

A person who is likely to get a disease or infection, usually their body defenses are weak

21
Q

Examples of Susceptible Hosts

A

Elderly, Newborns, immunocompromised

22
Q

Ways to break the chain of Infectious Agent

A

Early recognition of symptoms and diagnosis of infection

23
Q

Ways to break the chain of Reservoir

A

Standard precautions, Employee health, Disinfection/sterilization, Environmental sanitation

24
Q

Ways to break the chain of Portal of Exit

A

PPE, standard precautions, hand washing, control of secretions and excretions, trash and waste disposal

25
Q

Ways to break the chain of Mode of transmission

A

Standard precautions, hand washing, air flow control, sterilization, food handling, transmission based precautions

26
Q

Ways to break the chain of Portal of Entry

A

Standard Precautions, wound care, catheter care

27
Q

Ways to break the chain of Susceptible Host

A

Immunizations, Recognition of high risk patients, treatments of underlying disease