Fifth Disease and Pregnancy  
   Includes signs and symptoms, tests available, and fetal risk.
   http://orpheus.ucsd.edu/otis/FifthDisease.html

Fifth Disease - KidsHealth  
   Fifth disease is a viral illness that causes a bright red rash among its symptoms. Features signs and symptoms, treatment, risks, prevention, and description of the parvo B19 virus that causes the disease.
   http://www.kidshealth.org/parent/infections/bacterial_viral/fifth.html

Erythema Infectiosum - Fifth Disease  
   Features the reason for the name "fifth disease", symptoms, and risks.
   http://www.drreddy.com/shots/fifth.html

Fifth Disease - Your Health  
   Includes complications, prevention, signs and symptoms, and a RealAudio version for the page.
   http://www.yourhealth.com/ahl/1267.html

Erythema Infectiosum - Fifth Disease - emedicine  
   Includes information on the cause - human Parvovirus B19, signs and symptoms, complications, prevention, and photographs.
   http://www.emedicine.com/derm/topic136.htm

Fifth Disease: Dr. Greene's HouseCalls  
   Discusses slap cheek (or fifth disease), contagiousness, and how to the identify symptoms.
   http://www.drgreene.com/html/21582.html

Fifth Disease and Parvovirus B19 Infection  
   Features signs and symptoms, incubation period, risks, and prevention.
   http://www.cdc.gov/ncidod/diseases/parvovirus/B19.htm

CDC - Parvovirus B19 (Fifth Disease)  
   Includes cause, symptoms, complications, diagnosis, prevention, and treatment.
   http://www.cdc.gov/ncidod/dvrd/revb/respiratory/parvo_b19.htm

Biotrin - Parvovirus B19 Infection in Pregnancy  
   Features cause, symptoms, and diagnosis.
   http://www.biotrin.ie/clinician/pregnancy/index.html

Fifth Disease  
   Pateient information with cause, images, diagnosis, prevention, and treatment.
   http://www.dermnetnz.org/dna.fifth/fifth.html

eMedicine - Parvovirus B19 Infection  
   Article by Dennis Cunningham, MD.
   http://www.emedicine.com/ped/topic192.htm

eMedicine Health - Fifth Disease  
   Features cause, symptoms, tests, treatment, and prevention.
   http://www.emedicinehealth.com/articles/15841-1.asp

MayoClinic.com - Fifth Disease  
   Includes symptoms, cause, diagnosis, complications, and treatment.
   http://www.mayoclinic.com/invoke.cfm?id=DS00437

MedlinePlus Medical Encyclopedia: Fifth Disease  
   Factsheet with cause, risk factors, symptoms, diagnosis, and treatment.
   http://www.nlm.nih.gov/medlineplus/ency/article/000977.htm