Coronavirus Update: What patients and families need to know

Pediatric Severe Combined Immunodeficiency (SCID)

SCID is a disease that passed on from parents to children (inherited).
It is a very rare, life-threatening disease.
The disease causes a child to have very weak immune system.
The best treatment for this disease is a bone marrow transplant.
Parents of children with SCID should talk with a genetic counselor about genetic testing and family planning

SCID is a very rare disease that can be deadly. It causes a child to have a very weak immune system. As a result, the child is unable to fight off even mild infections. The disease is also known as the “living in the bubble” syndrome because living in a normal environment can be fatal to a child who has it. This disease is passed down from parents to child (inherited).
Children with SCID become very sick with infections such as pneumonia, meningitis and chickenpox. They can die before they reach their first birthday. But treatments are available that can be successful.
Many genetic problems can cause SCID. These problems make the white cells in the blood (T and B cells) less able to fight infection. The child's immune system has trouble defending the body against bacteria, viruses and fungi.
There are several types of SCID. The two most common types are classical X-linked and ADA deficiency.
Since this disorder is inherited, parents of children with SCID should think about talking with a genetic counselor. The counselor can talk with you about genetic testing and family planning.

Your health care provider will ask about your child’s symptoms and health history. He or she will give your child a physical exam. Your child may need multiple blood tests to help confirm the diagnosis.
Symptoms of SCID usually start within the first year of a child’s life. Below are the most common symptoms of SCID. But symptoms can occur a bit differently in each child.
Usually the child will have many serious infections, life-threatening infections, or both. The infections are not easily treated. And medicines to treat the infections don't work well. Common infections include:
- Pneumonia
- Repeated ear infections
- Meningitis
- Blood infection
- Chronic skin infections
- Yeast infections in the mouth and diaper area
- Diarrhea
- Liver infection (hepatitis)

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