The development of cell-mediated immunity correlated with delayed hypersensitivity and an inflammatory response is associated with clinical cure, whereas the lack of or a defective cell-mediated immunity predisposes the host to chronic or recurrent dermatophyte infection.
22.
In particular, tinea capitis ( fungal scalp infection ) and related infections on other body parts caused by the dermatophyte fungus " Trichophyton violaceum " are abundant in the late 20th century throughout North Africa and the Middle East.
23.
However, while this fungus is not a true dermatophyte, it is opportunistic and has been seen to cause dermatophytosis in humans and other mammals on occasion . " A . fulvescens " has a worldwide distribution, however it is more frequently isolated in temperate climates.
24.
The fungus grows very slowly, forming dark hyphae, which contain chlamydoconidia cells and black colonies when grown on agar . " Piedraia hortae " is a dermatophyte and causes a superficial fungal infection known as black piedra, which causes the formation of black nodules on the hair shaft and leads to progressive weakening of the hair.
25.
Similar looking infections, sometimes diagnosed as favid but more often as atypical inflammatory tinea, may rarely be produced by agents of more common dermatophyte fungal infections, in particular " Microsporum gypseum ", the most common soil-borne dermatophyte fungus, and " Trichophyton mentagrophytes " ( name used in post-1999 sense for a phylogenetic species formerly referred to as " Trichophyton mentagrophytes " var . " quinckeanum " ), the agent of favid infection of the mouse.
26.
Similar looking infections, sometimes diagnosed as favid but more often as atypical inflammatory tinea, may rarely be produced by agents of more common dermatophyte fungal infections, in particular " Microsporum gypseum ", the most common soil-borne dermatophyte fungus, and " Trichophyton mentagrophytes " ( name used in post-1999 sense for a phylogenetic species formerly referred to as " Trichophyton mentagrophytes " var . " quinckeanum " ), the agent of favid infection of the mouse.
