A previously healthy 33-year-old male patient presented with fever, rash and polyarthritis. Subsequently, he developed pleuropneumonitis, pericardial effusion and hepatitis. The diagnosis of parvovirus B19 infection was based on the detection of parvovirus DNA by PCR in a skin biopsy, bone marrow cells and serum. The patient had high parvovirus IgG antibody titres but remained negative for IgM at a three month follow-up, suggesting persistence of the virus or reinfection. It is concluded that detection of viral DNA is needed to verify a parvovirus B19 infection even in an immunologically healthy host.
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