is an inherited disorder causing very low infection-fighting white blood cells.

is a serious COVID-19 illness that can severely affect breathing and organs.

is a rare genetic disorder causing severe dermatitis, allergies, and poor growth.

is a rare, widespread CMV infection causing severe illness in healthy people.

is an inherited eye disorder causing severe vision loss in early childhood.

is an inherited nerve disorder causing early, severe weakness and sensation loss.

is a rare genetic disorder causing severe childhood obesity and insulin resistance.

is a rare lung disease causing surfactant buildup and early respiratory failure.

is a rare inherited disorder causing severe skin and mouth blistering.

is a genetic disorder causing poor growth, strabismus, blue-gray patches, intellectual disability.

is a serious inherited bleeding disorder caused by very low factor VIII.

is an inherited bleeding disorder caused by very low factor IX.

causes dangerously increased blood clotting (thrombophilia) from inherited protein C deficiency.

is an inherited clotting disorder that greatly increases blood clot risk.

is a rare genetic syndrome causing hypotonia, developmental delay, and heart defects.

is a rare immune disorder causing severe, ongoing inflammation of the intestines.

is a rare condition causing severe intellectual disability and worsening leg stiffness.

is a rare genetic condition causing severe learning, balance, and facial differences.

is a genetic disorder causing developmental disability, seizures, anal anomalies, short fingertips.

is a rare genetic syndrome causing developmental disability and physical differences.

is a rare genetic condition causing severe developmental disability and distinctive features.

causes severe developmental disability, progressive small head size, and repetitive hand movements.

is a condition causing severe intellectual disability and progressive leg stiffness.

is a rare genetic condition affecting development, growth, behavior, and facial features.