Parvovirus B19 DNAemia in pregnant women in relation to perinatal death: a nested case-control study within a large population-based pregnancy cohort.

B19V-PCR positivity was high and similar in both cases and controls. In our study B19V-DNAemia was thus not seen to be associated with fatal outcome of pregnancy. The clinical significance of B19V-DNA detection during pregnancy is uncertain. Caution is needed when diagnosing a B19V-infection based only on B19V-DNAemia.