More babies are dying in the US: Details on the troubling trend

A teenage mom delivered a baby boy in fetal distress at 25 weeks gestation. Doctors tried to resuscitate the child – with ventilation, cardiac compressions, chest tubes and other methods – to no avail. The neonatologist later discovered that the mother had a previously undiagnosed case of syphilis.

The baby’s death at a Wisconsin hospital illustrates some the dangers babies face in their first year of life. It's also the type of scenario doctors are examining as they try to understand a grim new trend. For the first time in...