Strengths and limitations
Regarding the limitations, in this study, 19% of parturients reported
previous spontaneous abortion, 19% of these were CMV positive in the
placenta. In almost 50% of parturients CMV positive, virus was detected
in cord blood had abortion history. Although there was statistical
association between CMV and abortion history in bivariate analysis, it
was not possible to correlate no previous episodes of poor obstetric
history as a protection factor to vertical transmission or CMV presence
in the last pregnancy. However, this information may be relevant in the
investigation of patients at risk of vertical transmission. This result
might be caused as a consequence of the sample size in the studied
population.