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Marvel and DC universes have various villains, similar to infections, which also come in different shapes, sizes, and abilities. Among these infectious supervillains, like bacteria and viruses, fungi have their own place—say Poison Ivy from Batman. Fungal infections are often more obstinate and difficult to treat than viral and bacterial infections. This is because fungi can form resistant spores that evade antifungal treatments, they grow more slowly than bacteria making treatment take longer, and they can invade deep tissues, hiding from immune defenses and medications. These factors contribute to fungal infections persisting and recurring even after treatment.
As a dog parent, it’s important to understand the different types of infections that can affect your furry friend. While bacterial and viral infections get a lot of attention, every dog parent should know about common fungal infections.
What Are Fungal Infections?
Fungal infections happen when harmful fungi grow in or on your dog’s body. These infections can be either local (affecting just one area) or systemic (spreading throughout the body). Unlike bacteria, fungi are more complex organisms that can be harder to treat and may take longer to clear up.
Common Local Fungal Infections
Ringworm is probably the most well-known local fungal infection in dogs. Despite its name, it’s not actually caused by worms. This infection affects the skin, hair, and nails, causing circular patches of hair loss, scaling, and sometimes red, irritated skin. Ringworm is highly contagious and can spread to other animals and even humans.
Yeast infections are another common local problem, especially in dogs with floppy ears or skin folds. These infections often affect the ears, paws, and skin creases. You might notice your dog scratching more than usual, a musty smell, or dark, waxy discharge from the ears.
Malassezia dermatitis is a skin condition caused by yeast that naturally lives on your dog’s skin. When it overgrows, it causes itching, greasy skin, and a distinct odor.
Common Systemic Fungal Infections
Systemic infections are more serious because they affect internal organs. These infections are less common but can be life-threatening.
Blastomycosis is found mainly in certain geographic areas, particularly around the Great Lakes and river valleys. Dogs usually get infected by breathing in fungal spores from soil. Symptoms can include coughing, difficulty breathing, fever, and weight loss.
Histoplasmosis occurs when dogs inhale spores from soil contaminated with bird or bat droppings. This infection primarily affects the lungs but can spread to other organs. Signs include coughing, fever, and loss of appetite.
When to See Your Veterinarian
If you notice any unusual symptoms like persistent coughing, skin problems, ear issues, lethargy, or loss of appetite, it’s important to contact your veterinarian right away. Fungal infections can look similar to other conditions, so proper testing is needed for an accurate diagnosis.
Your vet may need to perform skin scrapings, fungal cultures, blood tests, or other diagnostic procedures to identify the specific type of infection and determine the best treatment plan.
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Animal Wellness
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