Horrible disease. Forces those who suffer from it to avoid sunlight, as it is harmful to their unpigmented skin.
If you suffer from gingervitus you may be known as a 'ginger kid'.
Symptoms include red hair, light skin and freckles.
Some
people have red hair but not light skin and freckles, those
people are called daywalkers.
To learn more on the subject watch the 'Ginger Kids' episode of
South Park.