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Understanding your child's condition is an important step on your treatment journey. Learn more about causes, symptoms and diagnosis for a variety of conditions, as well as unique treatments and research being performed at Children's National.

Acute Flaccid Myelitis

Acute flaccid myelitis (AFM) is a rare condition that affects the area of the spinal cord called gray matter and causes the body’s muscles to become weak. Learn more about this condition.

Bone and Joint Infections

Bone infections, or osteomyelitis, involve inflammation of the bone, usually caused by a bacterial infection. Learn more about this condition.

Fever of Unknown Origin

A fever is defined by most healthcare providers as a temperature of 100.4°F (38°C) and higher when taken rectally. Learn more about this condition.

Infectious Mononucleosis (Mono)

Infectious mononucleosis (mono) is a contagious illness that is common in teens and young adults. Learn more about this condition.


Influenza (flu) is a very contagious viral infection that affects the air passages of the lungs. Learn more about this condition.

Lyme Disease

Lyme disease is an infection caused by bacteria called Borrelia burgdorferi. Learn more about this condition.


Meningitis is a swelling (inflammation) of the thin membranes that cover the brain and the spinal cord. Learn more about this condition.

Sexually Transmitted Infections

If you’re having any kind of sex, it’s important for you to stay informed about STIs. To get started, take a look at the information and resources we have compiled to educate you about sexually transmitted diseases.

Staph and MRSA Infection

MRSA is staph bacteria that can't be killed with common antibiotics. Learn more about this condition.


Tuberculosis (TB) is an ongoing infection caused by bacteria. Learn about the causes and risks of tuberculosis and its various stages of infection and disease in children.