NCIt definition : A self-limited viral infectious disorder caused by the human parvovirus B19. It affects
predominantly children and is characterized by the development of a bright red skin
eruption in the cheeks. It is followed by a maculopapular skin eruption in the extremities
which eventually fades into a lacey pattern.;
Alternative definition : NICHD: An infection that is caused by parvovirus B19; it is characterized by the development
of bright red cheeks (slapped cheeks), which is followed by a skin eruption in the
extremities that often has a lacy pattern.;