Fergr's Disease

The Fergr's Disease was a common infant disease that causes a mutation in children which changes their natural hair color, permanently. The disease is more common among humans but cases have also been reported among elves and dwarves. Valerie had the disease as an infant, whereas Zerether didn't.

History
The Fergr's Disease has been around since the first age. The disease has been a cause for increased infant mortality, however, it has never been an epidemic. The disease is named after the cleric of Mrianha Ivanogoth Fergr who it's widely believed to be the cause of the disease. The cleric himself never confirmed or the denied the accusations.

Signs and Symptomes
The primary sign of Fergr's Disease is the development of an abnormal hair color. The color change is followed by reduced hair growth then hair loss.

Other symptoms are: fever and weakened immune system.

Though the disease is not fatal on its own, it makes the infant highly susceptible to other diseases.

Cure
A cure for Fergr's Disease was developed a couple of decades before the time when  Zerether was born. As the hair color change is a mutation, those cured from the disease are still left with their new hair color.

A vaccine for the global reach has yet to take affect, infants are still affected by the disease though most of the time they are cured.