Whats is a very rare disease?

Question

What is a bizarre disease that affects like under 2% of the world population.i kinda like alien hand syndrome but are there amy weirder out their. its for a 7th grade report

Answer 1

anthrax in humans

check this out: http://www.rarediseases.org/

Answer 2

My son had Guillain Barre Syndrome.Before now I had never heard of it.Google it and you learn alot about it.It's a type of temporary muscular parylization.Its very rare.Especially in children.Good luck with your report.