Prenatal transmission of dengue: two new cases.

Dengue is commonly observed in most tropical countries, but its transmission from mother to fetus has not been frequently described. We report two such cases. The first signs of dengue in the infants appeared on the 3rd and 9th days of life. In both, a bacterial infection was suspected initially. In areas where it is endemic, the diagnosis of dengue should be considered in the neonate with signs of bacterial infection. When dengue is suspected in a pregnant woman, laboratory investigation and extended observation of the newborn are advised.