XL Vets equine factsheets

Ringworm is a highly contagious fungal infection of the skin. It is spread either directly from horse to horse by contact, or indirectly via tack, grooming aids, infected rugs or clothing. Other species in particular cattle can also be a source of infection. Good hygiene is essential to control the spread of infection. The spores can survive in the environment so once one case is seen on a yard other cases often appear. The incubation period is 4-30 days so by the time a horse shows symptoms the disease may have spread to other horses on the yard.