. Special pathology and therapeutics of the diseases of domestic animals. Veterinary medicine. 832 Dourine. As the ring and semi-circular dollar spots have been ob- served in northern regions only in dourine, they may be con- sidered as characteristic for the disease, or at least accepted as suspicious in a high degree. Their repeated appearance for weeks and months, and frequently also their persistence for several days, distinguish them from the ordinary urticaria. In tropical regions the differentiation of dourine from nagana, surra and Mai de caderas may evidently cause diffi- culty, but a
. Special pathology and therapeutics of the diseases of domestic animals. Veterinary medicine. 832 Dourine. As the ring and semi-circular dollar spots have been ob- served in northern regions only in dourine, they may be con- sidered as characteristic for the disease, or at least accepted as suspicious in a high degree. Their repeated appearance for weeks and months, and frequently also their persistence for several days, distinguish them from the ordinary urticaria. In tropical regions the differentiation of dourine from nagana, surra and Mai de caderas may evidently cause diffi- culty, but as according to the reports so far available, trypano- somes in the secretions of the genital organs are found only in dourine, their presence there would clear the diagnosis; like- wise an infection which may be shown to have been trans- mitted by coitus speaks for Fig. 149. Vaginal secretion of a mare affected with dourine. a trypanosomes; 6 epithelial cells from the deeper, d from the superficial layer of the mucous membrane; c leucocytes; e erythrocytes. After a fresh, unstained preparation. According to Baldrey the disease may be distinguished from surra in that the latter usually occurs in epizootics, geldings and unbred mares become affected, the body temperatures reach high degrees and last longer, and trypanosomes are present in the blood in great numbers at the beginning of the fever. According to Davison, Bursattee (see p. -739) also resembles dourine as it also is associated with a swelling of the genitals and inflammation of the skin; these however are very painful. At times where there exists no suspicion of infection, the initial stage of dourine is sometimes mistaken for a traumatic jiilammation of the genitals; however, the traumatic origin may. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origi
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectveterin, bookyear1912
