Pregnancy-related mortality has risen sharply, and doctors have overlooked a particularly dangerous period: from six weeks to one year after the birth.

© Callaghan O'Hare/Reuters

Mother-to-child H.I.V. transmission takes an enormous toll in low-income countries. The Trump administration has laid off the officials who worked to solve the problem.

© Joao Silva/The New York Times

The findings showed the highest mortality occurred among infants who were Black, lived in Southern states or had fetal birth defects.

As trust in medicine declines and vaccine hesitancy spreads, doctors are changing how they talk about lifesaving childhood shots.

The results of a new federal analysis were drawn from studies conducted in other countries, where drinking water contains more fluoride than in the United States.

Researchers say hundreds of thousands of babies’ lives could be saved each year in developing countries with exclusive breastfeeding.

The controversial medical diagnosis of shaken baby syndrome can send parents to jail. What if the symptoms are caused by something else?