| 英文描述 | In horses, usually due to hypersensitivity to CULICOIDES species gnats during the summer and fall. Hypersensitivity to flies such as SIMULIUM (black flies), STOMOXYS CALCITRANS (stable fly), and possibly HAEMATOBIA (LYPEROSIA) IRRITANS may also occur. Lesions are usually on the dorsal part of the horse, especially the croup and neck, but the ventral midline and other areas can be involved. Dx by clinical signs associated with exposure to insects. Hypersensitivity to CULICOIDES in cattle and sheep was described in Israel. |