A new guideline doesn’t change care

Early in my career as a neonatologist, group B streptococcus (GBS) was one of the infections we feared most. Babies who appeared healthy could become critically ill within hours or days, leaving physicians to tell parents that their newborn was suddenly fighting a life-threatening infection. Eventually, evidence gave us a way to prevent many of those infections. Researchers found that screening pregnant women for GBS, and treating those who tested positive with antibiotics during labor could...