Fungus is the member in a big group which are made by eukaryotic organisms containing microorganisms. Most of them are not detrimental to human body, but some will lead to fungal disease. The reason is that biological compounds will be produced by fungi and some of compounds are harmful to plants, animals and human body. Fungus is mostly in every place.Thus people are easy to get attacked by harmful fungus. It will cause skin and lung infection.