Roseola is a febrile illness primarily affecting children
between age 6 and 36 months. Typically, the course begins with an abrupt
febrile illness, with the fever typically lasting approximately 3 days.
In most cases, a morbilliform rash appears as the fever defervesces.
Erythema infectiosum (fifth disease) is a viral exanthem caused by
parvovirus B19. Rubella (German measles) is a viral exanthem, with
which children often have little or no prodromal illness. Rubeola
(measles) is a highly contagious acute illness that is often associated
with a viral prodrome. The rash is often seen on day 3 or 4 of the illness
as the prodromal symptoms, including fever, peak. Varicella (chicken pox)
commonly presents as erythematous papules that enlarge to form thin-walled
vesicles. Classically, the patient with varicella has lesions in various
stages of eruption.
1. Zitelli BJ, Davis HW, editors. Atlas of pediatric physical diagnosis.
3rd ed. St. Louis: Mosby-Wolfe; 1997.
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