An outbreak of Ringworm among Cattle in Shimane

Abstract

Of 35 dairy cattle, 31 became ill about 20 days after their arrival from the Hokkaido district.
The first symptom to appear was a raised, ring-like patch on which hair stood erect.
In a day or so the hair fell off, and the surface of the skin was covered with masses of scales, which heaped up into a greyish-white or greyish-yellow crust.
Lesions were very numrous and often became confluent. So that large ones became bare of hair and presented a rough, crusty, hard, dry surface. They showed a tendency to form pronounced wrinkles on the skin. Lesions occurred anywhere on the body surface.
Trycophyton sp. was isolated in culture from scales and the root of hair in many cases.