Rarest Diseases You Never Knew Existed!

There are some diseases which you have never heard of before. Can you imagine a human looking like a wolf or growling bark like covering all over the body. We are lucky enough to be diagnosed with viral fever, common cold or tooth ache but never encountered such weird conditions in life. There are certain disorders in the world which will definitely give you goosebumps. Check out the collection of 13 such rarest diseases.

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