Abstract
An Akita dog with atopic dermatitis caused by allergy to pollen and house dust mites was successfully treated by nine-year continuous hyposensitization. This is the longest case ever reported of hyposensitization without a break. The disease developed at the age of 18 months, when the first intradermal test was done. The dog had a positive reaction to such antigens as house dust mites, mugwort, velvet grass, dandelion, ragweed, 7-grass mix, Japanese cedar pollen. On the whole the treatment was effective during the period, and no adverse reaction was observed.
