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[Parvovirus B 19 infections]
Revue Francaise De Transfusion Et Immuno-Hematologie
|June 1, 1986
Summary
Human parvovirus (HPV) is a key cause of aplastic crisis in hemolytic anemias, often revealing underlying conditions like hereditary spherocytosis. HPV infection presents with varied symptoms, including erythema infectiosum (fifth disease) and vascular purpura.
Area of Science:
- Virology
- Immunology
- Hematology
Context:
- Human parvovirus (HPV) infections were diagnosed retrospectively between 1984-1985.
- Diagnostic methods included electroimmunodiffusion for viral antigen/antibodies and radioimmunoassay for IgM.
- Initial screening involved 38,730 sera submitted for hepatitis A and B testing.
Purpose:
- To investigate the role of HPV in various clinical manifestations.
- To determine the prevalence of HPV in specific patient groups.
- To characterize the clinical spectrum of HPV infection.
Summary:
- Seven HPV viraemias were identified among 38,730 sera.
- HPV was implicated in 17/17 erythema infectiosum (fifth disease) cases and 4/22 rubeola-like illnesses.
- HPV was detected in 2/4 vascular purpura cases and associated with arthropathies and spontaneous abortions.
Impact:
- HPV is identified as the primary agent of aplastic crisis in chronic hemolytic anemias, potentially uncovering undiagnosed anemias like hereditary spherocytosis.
- The study highlights the diverse clinical presentations of HPV, ranging from asymptomatic viremia to erythema infectiosum and vascular purpura.
- While HPV was not directly isolated in fifth disease, serological evidence strongly suggests its causal role.