Bacterial vaginosis was associated with the preterm delivery of low-birth-weight infants independently of other recognized risk factors.

The efficacy of a sporozoite-based malaria vaccine is tested in humans, nonhuman primates, and mice.

After considering other recognized risk factors including co-infections, pregnant women infected with T. vaginalis at mid-gestation were statistically significantly more likely to have a low birth weight infant, to deliver preterm, and to have a preterm low birth weight infant. Compared with whites and Hispanics, T. vaginalis infection accounts for a disproportionately larger share of the low birth weight rate in blacks.