Ringworm is a skin infection caused by a fungus. It is contagious between dogs, cats, people, and many other animals. It is usually mild but can be serious in very young or weak animals.
Dogs catch ringworm, also known as dermatophytosis, when damaged skin comes into contact with spores shed by an animal with the disease. Direct contact with animals that have it is most common, but hairs and objects can also carry the infection. Healthy animals can clear the disease after a few months, but they can spread it in the meantime. This disease is very contagious but not life-threatening.
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