MedlinePlus: Fifth Disease
- Learn what it is, causes, symptoms, and treatment. Includes picture of the rash that looks like slapped cheeks.
- http://www.nlm.nih.gov/medlineplus/ency/article/000977.htm

eMedicine: Erythema Infectiosum (Fifth Disease)
- A common childhood disease caused by human Parvovirus B19 (PV-B19). Covers background, history, frequency, studies, treatment, and medication during infection.
- http://www.emedicine.com/derm/topic136.htm

Dr. Greene: Fifth Disease
- Description,symptoms, treatment, and prognosis for 'slap cheek' disease.
- http://www.drgreene.org/body.cfm?id=49&action=Display&articlenum=977

KidsHealth: Fifth Disease
- Features signs and symptoms, treatment, risks, prevention, and description of the parvo B19 virus that causes Fifth disease.
- http://www.kidshealth.org/parent/infections/bacterial_viral/fifth.html