Roseola infantum
introduction
Roseola is not a “vaccine preventable” illness, but I include it along with a discussion of measles & chickenpox as another common childhood febrile exanthem.
Roseola may be known as Sixth disease, a classification of febrile exanthems including
First disease - measles
Second disease - scarlet fever
Fourth disease - considered by some to represent staphylococcal scalded skin syndrome, and by others to be a nonexistent disease entity and misdiagnosis of scarlet fever or rubella, dropped from medical textbooks in the 1960’s and only rarely used for medical trivia purposes
Fifth disease - erythema infectiosum, “slapped cheek syndrome,” most commonly referred to as Fifth disease
