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Chapter: Medical Surgical Nursing: Management of Patients With Infectious Diseases

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The Infectious Process

The Infectious Process
A complete chain of events is necessary for infection to occur.

The Infectious Process

A complete chain of events is necessary for infection to occur. Figure 70-1 illustrates the elements of the chain and identifies weak links where health care workers’ interventions can interrupt the chain. The necessary elements of infection include the following:            

• A causative organism

• A reservoir of available organisms

• A portal or mode of exit from the reservoir

• A mode of transmission from reservoir to host

• A susceptible host

• A mode of entry to host


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