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  • Title: No detection of human bocavirus in amniotic fluid samples from fetuses with hydrops or isolated effusions.
    Author: Enders M, Lindner J, Wenzel JJ, Baisch C, Schalasta G, Enders G, Modrow S.
    Journal: J Clin Virol; 2009 Aug; 45(4):300-3. PubMed ID: 19473872.
    Abstract:
    BACKGROUND: Human bocavirus (HBoV) is a recently identified parvovirus associated with respiratory disease in infants. Animal bocaviruses have been shown to cause intrauterine infection, fetal anasarca and abortion in late gestation. OBJECTIVES: To investigate whether HBoV infection is associated with fetal hydrops, fetal anemia or isolated fetal effusions. STUDY DESIGN: We determined the prevalence of HBoV and parvovirus B19 (B19) DNA in amniotic fluid samples from fetuses with hydrops, anemia or isolated effusions using different real-time PCR protocols, and the HBoV IgG and IgM positivity rate in pregnant women with fetal hydrops or normal ultrasound findings by a non-commercial virus-like particle-based enzyme immunoassay. RESULTS: None of 87 amniotic fluid samples tested was HBoV DNA positive. Twelve of 60 fetuses with hydrops or anemia were found B19 DNA positive. Anti-HBoV IgG antibodies were detected in 100% (19/19) and 94% (47/50) of serum samples from pregnant women with fetal hydrops and normal ultrasound findings, respectively. All serum samples were found negative for anti-HBoV IgM. CONCLUSION: We suggest that HBoV is not a common cause of fetal hydrops, anemia or isolated effusions. This has to be confirmed by further studies of proven gestational HBoV infection.
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