West Nile virus is an illness that mainly affects birds. But an infected mosquito can spread it to people and other animals. Here's what you need to know about prevention, symptoms, diagnosis, and treatment.

Meningitis is inflammation of the lining around the brain and spinal cord. It’s most often caused by germs that infect the fluid and lining.

Shingles is also called herpes zoster. It's a painful skin rash caused by the herpes zoster virus. This is the same virus that causes chickenpox.

The flu is an infection that affects your respiratory tract. This tract includes your mouth, nose, and lungs, and the passages between them. Unlike a cold, the flu can make you very ill.

The rate or pattern of the heartbeat is known as the heart rhythm. Abnormal heart rhythms are called arrhythmias. These can cause your child to have symptoms such as lightheadedness, dizziness, low blood pressure, fainting, or fatigue. In rare cases, arrhythmias can cause more serious problems. To help your child's healthcare provider learn more about your child's heart rhythm, tests can be done.

Fetal echocardiography is a tyest that shows pictures of the baby's heart before birth. It is done to check for problems in the baby's heart structure, function, or rhythm.

Coarctation of the aorta is a narrowing of the aorta. It can lead to worsening heart function over time, but effective treatments are available.

The most common treatment for hypoplastic ventricle is heart surgery. This is often done in 3 stages. This sheet helps you understand the surgery that is done during stage I.

Tricuspid valve atresia, the tricuspid valve is absent or blocked off. This affects how oxygen-rich blood is delivered to the body.

With hypoplastic left heart syndrome, the left side of the heart didn't develop correctly. Surgery is needed to repair this congenital heart defect. Read on to learn more.