Note a clean blister on a red macule of the skin, a lesion called "a dew drop on a rose petal".
Chickenpox is caused by infection with Herpes zoster virus (HZV) which homes in on epidermal keratinocytes to produce multiple blisters filled with clear fluid. These blisters have a characteristic "dew drop on a rose petal" appearance.
Terence O'Grady, M.D.
Department of Medicine
School of Medicine
University of California, San Diego
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