Acute rheumatologic symptoms are frequently associated with human parvovirus B19 (B19) infections. A nested PCR (nPCR) assay was used to test for the presence of parvovirus B19 DNA in synovial fluid and/or synovial membrane specimens obtained from a total of 90 patients with arthritis of unknown origin. Whereas only one out of 73 synovial fluid samples were found positive, 15 (16.7%) out of 90 patients had parvovirus B19 DNA in the synovium. B19 virus DNA was detected in nine bone marrow aspirates subsequently obtained from these 15 patients (60%). Whereas each one of the 15 corresponding blood samples contained anti‐B19 IgG antibody, none contained anti‐B19 IgM antibody and only one was positive for B19 virus DNA. The blood and synovial fluid samples that contained B19 virus DNA were obtained from the same patient, who also had B19 DNA in synovium and bone marrow. For one patient, two distinct synovial membrane specimens collected 10 months apart tested positive for B19 virus DNA. Parvovirus B19 DNA was also detected in synovial tissue of one out of nine nonarthritic patients serving as control group, who also had anti‐B19 IgG circulating antibody. These data illustrate that human parvovirus B19 may persist in bone marrow and synovial tissues of patients with arthritis of unknown origin. In contrast, persistence of B19 virus DNA in synovial fluid is rare. The significance of parvovirus B19 DNA in synovium of healthy patients has to be established. J. Med. Virol. 56:199–204, 1998. © 1998 Wiley‐Liss, Inc.
Journal of Medical Virology – Wiley
Published: Nov 1, 1998
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