Ko2 (IMAGE)

Duke University

Ko2

Caption

This digitally-colorized scanning electron microscopic (SEM) image shows Salmonella bacteria (red) invading an immune cell (yellow). Salmonella Typhi is the cause of typhoid fever. Researchers at Duke have discovered human genetic variation can impact both invasion of Salmonella into cells and typhoid fever risk in people.

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CDC Public Health Image Library (NIAID)

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