Fifth disease (erythema infectiosum) is a contagious and usually
mild viral illness that is common in children. Early symptoms of fifth disease
resemble the flu; these are followed by a characteristic rash on the face that
looks like slapped cheeks and a lacy pink rash on the backs of the arms and
legs, torso, and buttocks.
This illness is most contagious the week before the rash appears.
Once the rash has developed, the child usually is no longer considered
contagious. The rash may come and go for several weeks in response to changes
in temperature and sunlight.
To treat fifth disease, keep the child comfortable and watch for
signs of a more serious illness, such as a fever higher than
102
°F (38.9
°C) or other signs
that the child may be very sick.
Fifth disease, although usually a mild illness in children, poses a
slight risk to developing fetuses. Pregnant women should avoid being exposed to
the disease if possible. If a pregnant woman is exposed to a child who has
fifth disease, or develops a rash like that caused by fifth disease, she should
contact her health professional.