exanthema subitum
Definition: a disease of infants and young children caused by human herpesvirus-6, marked by sudden onset with fever lasting several days (sometimes with convulsions) and followed by a fine macular (sometimes maculopapular) rash that appears within a few hours to a day after the fever has subsided.
Synonym(s): Dukes disease, pseudorubella, roseola infantilis, roseola infantum, sixth disease
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