What infection control measures are needed for patients with parvovirus B19 (B19V) infection?

Updated: Oct 11, 2019
  • Author: David J Cennimo, MD, FAAP, FACP, AAHIVS; Chief Editor: Russell W Steele, MD  more...
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Patients rarely require admission for parvovirus B19 (B19V) infections unless they have underlying disease.

Consider the following factors for purposes of infection control:

  • Parvovirus B19 is spread via small respiratory droplets.

  • The attack rate in susceptible populations approaches 60%.

  • Parvovirus B19 is contagious from 24-48 hours before developing the viral prodrome and until the rash appears. The appearance of serum immunoglobulin (IgM) coincides with the appearance of the rash. [9]

  • See above for isolation precautions.

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