What is erythema infectiosum (Fifth disease)?

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Last updated: May 6, 2025View editorial policy

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From the Guidelines

Fifth disease is a self-limiting illness that typically requires only symptomatic treatment with acetaminophen or ibuprofen for fever and discomfort. The disease, also known as erythema infectiosum, is caused by parvovirus B19 and usually presents with a distinctive "slapped cheek" rash on the face followed by a lacy red rash on the trunk and limbs. According to the case definitions for infectious conditions under public health surveillance by the Centers for Disease Control and Prevention 1, an illness characterized by fever, headache, chills, myalgia, conjunctival suffusion, and less frequently by meningitis, rash, jaundice, or renal insufficiency, may be indicative of fifth disease. Symptoms may be biphasic.

Key Considerations

  • The illness usually resolves within 1-3 weeks without complications
  • Rest and adequate fluid intake are recommended
  • Fifth disease spreads through respiratory secretions and is most contagious before the rash appears
  • Once the rash develops, the person is usually no longer contagious
  • Complications can occur in pregnant women, people with certain blood disorders like sickle cell disease, or those with compromised immune systems, and these individuals should contact their healthcare provider if exposed.

Treatment and Prevention

  • Symptomatic treatment with acetaminophen or ibuprofen for fever and discomfort
  • Adequate rest and fluid intake
  • Practicing good hygiene, such as frequent handwashing, can help prevent the spread of the disease.

From the Research

Definition and Diagnosis

  • There is no information available about 5th disease in the provided study 2.

Treatment and Management

  • The study 2 discusses the management of End-Stage Renal Disease (ESRD), but does not mention 5th disease.
  • It provides guidance on the management of ESRD, including referral to nephrology, kidney transplantation, dialysis, and palliative care.

Prevention and Vaccination

  • The study 2 recommends vaccination against certain diseases, such as seasonal influenza, tetanus, hepatitis B, human papillomavirus, and Streptococcus pneumoniae, for patients with ESRD.
  • However, it does not provide information about 5th disease or its prevention.

Complications and Monitoring

  • The study 2 highlights the importance of monitoring patients with ESRD for signs of protein-energy wasting and malnutrition, as well as controlling blood pressure and managing diabetes mellitus.
  • However, it does not discuss 5th disease or its potential complications.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

End-Stage Renal Disease: Medical Management.

American family physician, 2021

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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