gradient of infection

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The range of possible host reactions to an invading pathogenic organism, from inapparent subclinical through mild clinical to severe to fulminating and overwhelming generalized fatal bacteriemia (or viremia). Usually, an overwhelming or fulminating infection leads to segregation of the victim, thereby reducing the risk of transmission. On the other hand, mild and subclinical infections that do not incapacitate leave the infected person able to move around and infect others.

Subjects: Public Health and Epidemiology.

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