What Is a Microsporum?

Microsporum canis is a more common pathogenic fungus, first discovered by Gruby in 1843. It is often the cause of tinea capitis, body ringworm and a few onychomycosis, as well as other rare fungal diseases. As a protozoan fungus, Microsporum canis can persist in animals for a long time without causing disease (especially in cats and dogs), and once it infects people, it can cause skin or hair damage and endanger human health.

Wool-like microspores, dental microspores, monkey microspores, and microspores obese.

Microscopic examination showed that most of the large conidia were spindle-shaped, with rough and thorny wall thickness, (10-25) m × (75-100) m, with more than 6 septa, and the tops were like "hat" -like hypertrophy. In addition, there are stick-like small conidia, hyphae are separated, racket-like hyphae are common, and sometimes comb-shaped hyphae and nodular hyphae can also be present.

Direct microscopy: The infection of the disease is a round or oval-shaped spore densely integrated piece without visible strings, and there may be a small amount of hyphae in the hair. Branching-separated hyphae can be seen in the dander. ^[1]

When cultured on SDA medium at 25 ° C, the colony grows fast. The initial growth is white to yellow villi-like growth. After 2 weeks, the mycelium is more like wool, so it is also called wool-like microspore. At this time, the mycelium can fill the entire inclined surface, the center tends to be powdered, the surface is yellow-white, there are a few concentric circles, the back is red-brown, the center is prominent, and the edges are shallow. ^[1]

Microsporum canis is an endemic pathogenic fungus worldwide. In North America, the area was 100 years ago.

In Italy, Microsporum canis is

The extensive application of molecular biology in various medical fields has promoted people's understanding of the microworld, and also provided new

Attention should be paid to the identification of microspores with odouran. Microsporum canis grows vigorously on cornmeal medium, producing more large and small conidia, while microsporum olidus grows poorly and has few spores. Yellow pigment from Microsporum canis on PDA culture medium

Microsporum canis can cause skin, hair and other parts of the infection, skin lesions appear as round or ring-shaped erythema with scaly surroundings, mixed with vesicles. When the hair is infected, it appears as local alopecia scaly spots. This bacterium is a protozoan dermatophyte that can cause psoriasis. It appears as a local abscess with loose hair and clear edges. It can also cause ringworm fungus rash ^[1] .