How do dogs get ringworm? - briefly
Dogs can contract ringworm through direct contact with infected animals or contaminated surfaces. The fungus responsible for ringworm, Microsporum canis, is highly contagious and can thrive in various environments.
How do dogs get ringworm? - in detail
Ringworm in dogs, also known as dermatophytosis, is caused by a group of fungi called dermatophytes. These microscopic organisms thrive in warm, moist environments and can be found on various surfaces including soil, contaminated bedding, and even on other animals. Dogs typically contract ringworm through direct contact with infected individuals or contaminated objects. The fungi can also be airborne, which means a dog can inhale spores and become infected.
The most common dermatophyte that affects dogs is Microsporum canis, which is highly contagious and can survive in the environment for up to 18 months. Other species such as Trichophyton mentagrophytes and Microsporum gypseum are also known to cause ringworm infections in dogs.
Ringworm spores can be transferred from one dog to another through grooming, playing, or sharing living spaces. Additionally, dogs that frequently visit parks, kennels, or other communal areas where infected animals may have been are at a higher risk of contracting the infection. The fungi can also be spread by contaminated grooming tools, bedding, and clothing.
Symptoms of ringworm in dogs include hair loss, often in circular patterns, along with redness or irritation of the skin. In some cases, the affected area may become scaly or crusty. Dogs may also exhibit excessive scratching or licking of the affected areas, which can lead to secondary bacterial infections.
Diagnosing ringworm typically involves a physical examination and laboratory tests such as fungal cultures or Wood's lamp examinations, where a special light is used to detect the presence of certain types of dermatophytes. Treatment usually consists of topical antifungal medications, oral antifungals, or a combination of both, depending on the severity and extent of the infection.
Prevention involves maintaining good hygiene practices, such as regular grooming, cleaning living areas with antifungal shampoos, and minimizing contact with potentially infected animals. Vaccination against ringworm is also available in some regions, which can help reduce the risk of infection.