The bacteria that causes pyoderma in dogs is Staphylococcus pseudintermedius. I learned this when my own dog developed a skin infection and the vet told me it was caused by this particular bacteria. It was interesting to learn that Staphylococcus pseudintermedius is actually a commensal bacterium, meaning it normally resides on the mucosal and skin surfaces of dogs. This made me realize that my dog’s infection was likely caused by an overgrowth or opportunistic infection of the resident bacteria.
It’s worth noting that Staphylococcus pseudintermedius was previously known as Staphylococcus intermedius. The name was changed to better reflect its role as a pathogen in dogs rather than an intermediary species. This name change also helps to differentiate it from similar Staphylococcus species found in humans.
Superficial pyoderma, the type of pyoderma that Staphylococcus pseudintermedius typically causes, refers to a skin infection that primarily affects the outer layers of the skin. This can lead to symptoms such as redness, itching, pustules, and crusting. In more severe cases, deeper skin layers may be affected, leading to abscesses and ulcerations.
The fact that Staphylococcus pseudintermedius is a commensal bacterium means that it normally lives in harmony with its host. However, certain factors can disrupt this balance and lead to infection. These factors can include a compromised immune system, skin damage or trauma, underlying allergies or dermatological conditions, and even certain medications that can alter the skin’s natural defenses.
When my dog was diagnosed with pyoderma, the vet explained that the infection was likely caused by the Staphylococcus pseudintermedius bacteria taking advantage of a small cut on her paw. The presence of the bacteria, combined with the compromised skin barrier, allowed for the infection to develop.
Treatment for pyoderma typically involves a combination of topical and/or oral antibiotics, depending on the severity of the infection. In some cases, additional therapies such as medicated shampoos or immune-modulating medications may be recommended. It’s important to follow the vet’s instructions closely and complete the full course of treatment to ensure eradication of the bacteria and prevent recurrence.
Staphylococcus pseudintermedius is the main bacteria responsible for causing pyoderma in dogs. While it is a commensal bacterium that normally resides on the skin, certain factors can lead to an overgrowth and subsequent infection. Proper diagnosis and treatment by a veterinarian are essential for effectively managing and resolving pyoderma in dogs.