Contents
What is the cause of Microsporum canis?
canis mainly causes dermatophytosis in cats and dogs. And infected animals and asexual spores contaminated objects are common sources for human infection. Spores are very resistant, attach to the skin and germinate producing hyphae, which will then grow in the dead, superficial layers of the skin, hair or nails.
What does Microsporum canis do to the body?
Microsporum canis is a dermatophyte fungus of which cats and dogs are recognized as the natural hosts. M. canis is also easily transmitted to humans, causing lesions to the glabrous skin (tinea corporis) and to the head (tinea capitis).
How is Microsporum canis diagnosed?
mentagrophytes, or Microsporum canis may be found in all ruminants and New World camelids in children’s zoos. Animals may be asymptomatic carriers or display clinical signs of the typical circular lesions of alopecia on the face and ears, with or without pruritis. Diagnosis is via Wood’s lamp, skin, and hair cultures.
What disease does Microsporum cause?
Clinical Features. Tinea capitis, or “ringworm” of the scalp, is mainly a disease of children caused by Microsporum or Trichophyton species. Trichophyton tonsurans, Microsporum canis, and Microsporum audouinii are most common. The condition presents with hair loss (alopecia), usually with scale.
How can we prevent Microsporum in Canis?
In order prevent the spread of infection via the environment or contaminated fomites, an EPA or Health Canada approved disinfectant with a fungicidal claim will be effective at inactivating fungal spores. Direct contact with infected animals and related fomites should be minimized.
Where does Microsporum canis live?
Those dermatophytes are the only fungi capable of invading and residing in keratinized tissues. They are transmitted by contact with fur and dandruff, either infected or containing fungal particles, originating either from the animals, the environment or fomites.
How does Microsporum spread?
Epidemiology of Transmission The main reservoir for Microsporum canis are cats and dogs; however, it can also be transmitted to humans through direct and indirect contact with animals and fomites such as combs, brushes, hats, furniture, linens etc.
What does Microsporum Gypseum cause?
Dermatophytosis caused by M. gypseum usually manifests as an inflammatory mycosis that typically affects the glabrous skin and scalp, especially in children. Rarely, it can present as onychomycosis.
How does microsporum Canis spread?
How often should you bathe a dog with ringworm?
Shaving the hair in small areas, if only one or two areas are affected, or clipping all of your dog’s hair may be recommended by your veterinarian, along with bathing your dog with a medicated shampoo at least twice weekly.
What is the treatment for Microsporum canis infection?
Microsporum canis treatment depends on causes and severity of infection. Microsporum canis infections can be easily managed by topical antifungal agents; however severe cases may necessitate systemic therapy with griseofulvin, itraconazole or terbinafine.
How does Microsporum canis cause hair loss in animals?
Infection triggers an acute leukocytic reaction in subcutaneous tissues, which gradually becomes highly inflammatory and leads to hair loss, in the case of tinea capitis. Infections in animals due to Microsporum canis manifest as Ringworm and can cause a scaly, crusted rash that may appear as round, red patches on the skin.
How does Microsporum canis spread from person to person?
Direct or indirect contact with skin or scalp lesions of infected people, animals or fomites (i.e. floors, shower stalls, clothing, hairbrushes, etc.) contaminated with desquamated epithelium. In individuals with suppressed cell-mediated immunity, infection may occur via broken skin.
Can a ferret get dermatomycoses from Microsporum canis?
Dermatomycoses in ferrets are caused by Microsporum canis and Trichophyton mentagrophytes. Dermatophytes are transmissible to humans and are a zoonosis; thus affected animals should be quarantined and removed from the facility to minimize risk (Dinsdale and Rest, 1995; Scott et al., 1995; Fox et al., 1998b).