The sudden and unexpected death of a baby with no known illness, typically affecting sleeping infants between the ages of 2 weeks to 6 months.

This may affect infants or pregnant women who withdraw suddenly from high doses.

It may also affect otherwise normal infants in a self-limited form.

SMA manifests over a wide range of severity affecting infants through adults.

A highly contagious bacterial infection, whooping cough most seriously affects infants and young children.

This epidemic was also particularly devastating for the population's ability to recover, since it disproportionately affected infants and young men.

Studies find vitamin D deficiency can affect adults, infants, children, and adolescents.

The most common toy hazard is one that affects infants.

Congenital cataracts affect infants or young children and are considered to be a rare birth defect.

The condition affects infants during the first 6 months of life.