Recurrent granulocytic aplasia as clinical presentation of a persistent parvovirus B19 infection

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Abstract
Summary. We report a case of persistent infection with human parvovirus B19 (PVB19), manifesting clinically as recurrent agranulocytosis and in bone marrow biopsy as recurrent pure granulocytic aplasia. Persistence of parvovirus infection was documented by the presence of PVB19 DNA and anti‐PVB19‐IgM antibodies in the serum for a period of 19 months. Granulocytic aplasia occurred only when anti‐PVB19‐IgG antibodies were not detectable in the serum and granulopoiesis showed immediate recovery with high dose intravenous immunoglobulin treatment. This case report suggests that the erythroid precursor cell may not be the only target cell of PVB19 infection. We suggest testing for active parvovirus infection in cases of aplasia of any lineage of the haematopoietic system.

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