04.01.2015 Views

Epidemiology of Disease

Epidemiology of Disease

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Epidemiological Triads and the “Iceberg”<br />

Principal <strong>of</strong> <strong>Disease</strong> in Populations<br />

DEATH<br />

Clinical disease<br />

SEVERE<br />

DISEASE<br />

MILD ILLNESS<br />

Subclinical or<br />

Potential disease<br />

INFECTION WITHOUT<br />

CLINICAL ILLNESS<br />

EXPOSURE WITHOUT INFECTION

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