Studies also suggest that oral bacteria and the inflammation associated with periodontitis â a severe form of gum disease â might play a role in some diseases. In addition, certain diseases, such as diabetes and HIV/AIDS, can lower the body's resistance to infection, making oral health problems more severe.
Jock itch, also called tinea cruris, is a common skin infection that is caused by a type of fungus called tinea. The fungus thrives in warm, moist areas of the body and as a result, infection can affect the genitals, inner thighs, and buttocks. Infections occur more frequently in the summer or in warm, wet climates.
Fungal Diseases. There are two major contagious skin diseases caused by fungi, one is more frequent in children, and the other in teens and adults. They are: 1  Ringworm-This is caused by a fungus called dermatophyte. 2  It can be passed from person to person, or from animals to people.ontagious Skin Diseases can have three major causes. If you'd like to explore those caused by viruses, visit the skin disease photos page, where we show pictures of these diseases as well as give you basic information about them. The next major cause of these diseases is bacterial, and a third major cause is fungal.