Hemolytic disease of the newborn (HDN) is a blood problem in newborns. It occurs when your baby's red blood cells break down at a fast rate.  It’s also called erythroblastosis fetalis.

Meningococcal infections are not common, but they can be fatal. They occur most often in late winter and early spring. Children are more often affected, but the illnesses also occur in teens and adults.

Meningitis is most often caused by a bacterial or viral infection that moves into the cerebral spinal fluid (CSF).

Detailed information on vision and hearing in newborns

A detailed look at Turner syndrome, a genetic disorder that occurs in girls.

Human parainfluenza viruses (HPIVs) are a group of viruses that cause different types of respiratory infections. They are more common in children and babies. But they can occur in people of any age, especially those with a weak immune system.

Detailed information on HIV home care for your child

Haemophilus influenzae (H. influenzae) is a group of bacteria that can cause different types of infections in babies and children. H. influenzae most often cause ear, eye, or sinus infections. They also cause pneumonia.

Cold sores are small blisters around the mouth caused by the herpes simplex virus. Once a child is infected with the virus, the virus becomes inactive (dormant) for long periods of time. It can then become active at any time and cause cold sores.

An electroencephalogram (EEG) is a test that measures the electrical activity in the brain (brain waves). Small, round discs with wires (electrodes) are placed on the scalp during the test. The electrodes are not painful to your child.