Fifth disease is a viral infection common in children. The infection results in a mild rash on the face, trunk, and limbs. In healthy people, fifth disease usually goes away without medical treatment. Pregnant women, people with immune system problems, sickle cell anemia, or other blood disorders may be more effected. They may need to see a doctor.

Fifth Disease
fifth disease
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Fifth disease is caused by a virus called parvovirus B19. About half of all adults have been infected with this virus at some time.

The parvovirus is found in saliva, sputum coughed up from the lungs, and nasal mucus. It is usually spread from person-to-person through contact with those fluids.