The fungi that cause ringworm are very common, so it can be hard to avoid. Even though ringworm is contagious and easily spread, there are simple precautions you can take.
Tips for preventing ringworm:
Wash clothes regularly
Wash your hands often, especially after touching animals
If you think your pet has ringworm, take it to the vet to be treated
Shower after participating in contact sports. Dry thoroughly after showering
Avoid sharing towels, bedding or clothes with anyone who has ringworm