Zygomycota and Dikaryomycota. A third group of the fungi for which a sexual phase has not been observed is termed Deuteromycotina. The table outlines this classification and gives representatives of each. Nonetheless, most anti-fungal antibiotics are still relatively toxic to the human host. Mycotic infections are classified by the tissue levels that are colonized.
Superficial infections are generally limited to the outer layers of the skin and hair.
Cutaneous infections are located deeper in the epidermis, hair and nails. Subcutaneous infections involve the dermis, subcutaneous tissues and muscle. In addition, mycotic infections may be systemic, generally originating in the lungs. Finally, some mycoses are termed opportunistic, and these may involve a variety of body sites. The following table outlines these different types of mycotic infection, giving examples of representative agents.