Rare diseases — Medical conditions you may never have heard of before
Latest about rare diseases

The deadly 'black fungus' infection that decimates flesh
By Emily Cooke published
Most people are exposed to the fungi that cause mucormycosis regularly, but in certain individuals, these microbes can cause a potentially deadly infection.

Norrie disease: The rare genetic disorder that makes people go blind and deaf
By Emily Cooke published
Only around 500 cases of Norrie disease, a genetic condition, have been reported worldwide.

People with this rare genetic condition can't repair damage to their DNA
By Emily Cooke published
LIG4 syndrome is an exceptionally rare disorder caused by a genetic mutation that prevents the body from repairing damaged DNA.

What is alkaptonuria? The rare disease that turns your pee black
By Emily Cooke published
Alkaptonuria is an unusual disorder caused by a defect in protein metabolism.

What is Capnocytophaga? How an innocent dog lick can trigger a fatal infection
By Emily Cooke published
Capnocytophaga infections in humans are rare, especially in historically healthy individuals, but when it occurs, the disease can be deadly.

Argyria: The rare disease that turns people blue
By Emily Cooke published
Argyria is caused by a buildup of silver in the body, which discolors the skin.

Tularemia: The 'rabbit fever' that can fatally infect humans
By Emily Cooke published
Tularemia, or "rabbit fever," is an infectious disease that normally affects animals but can spread to humans, sometimes via tick and deer fly bites.

Situs inversus: The condition where your organs are on the 'wrong' side
By Emily Cooke published
Situs inversus is a rare genetic condition that causes the organs in the chest and abdomen to be located on the opposite side from where they're usually found, like a mirror image.
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