Birman Cat

　　Currently, five types of fungi have been found to cause skin diseases in dogs and cats: Microsporum canis, Microsporum gypsum, Trichophyton mentagrophytes, Arthroderma otae, and Microsporum gypseum. Among them, Microsporum canis is the most common, followed by Microsporum gypsum.

　　First, let's talk about Microsporum canis. Seventy percent of ringworm in dogs and cats is caused by this fungus. It mainly forms circular scaly patches on the skin. Although it is called Microsporum canis, it can also infect cats, and it can occur year-round.

　　Microsporum canis mainly causes scalp ringworm in humans. Microsporum gypsum lives in the soil and humans are also susceptible. This disease is comparatively acute with severe lesions that sometimes cause large areas of skin damage and are prone to secondary bacterial infection. Localized exudative suppuration can occur, and it may persist for months or even years when chronic.

　　Microsporum and Trichophyton mentagrophytes are generally transmitted from humans to dogs and cats; the possibility of transmission from dogs and cats to humans is small. The former primarily causes scalp ringworm in children, and the latter is the main pathogen of athlete's foot in the United States.

　　So how is the fungus transmitted? Mainly through direct contact. Indirect transmission can occur through contact with contaminated tools, combs, scissors, mats, and other items. However, fungi differ from bacteria and viruses in that they are less contagious. Infection usually occurs when the body's resistance and immunity decrease, such as after high-dose steroid use or with immune diseases. Additionally, malnutrition, weakness, or living in hot and humid climates may increase infection risk.

　　Therefore, as long as your immune system is normal and hygiene is maintained, even if infected with fungi, there is no major concern as long as close contact is avoided. (Source：PetsZone)