. The pathology and differential diagnosis of infectious diseases of animals : prepared for students and practitioners of veterinary medicine . Veterinary medicine; Communicable diseases in animals. 456 INFECTIOUS ANEMIA IN HORSES. mentions several bacteria which he isolated from the cases in Dakota. Udall and Fitch found B. coli present in the organs of the animals dead of this disease. Carre and Vallee passed the blood serum of an infected ani- mal through a Pasteur filter and pro- duced the disease by the injection of the filtrate into solipeds. This deter- mined its filterable nature. Fran
. The pathology and differential diagnosis of infectious diseases of animals : prepared for students and practitioners of veterinary medicine . Veterinary medicine; Communicable diseases in animals. 456 INFECTIOUS ANEMIA IN HORSES. mentions several bacteria which he isolated from the cases in Dakota. Udall and Fitch found B. coli present in the organs of the animals dead of this disease. Carre and Vallee passed the blood serum of an infected ani- mal through a Pasteur filter and pro- duced the disease by the injection of the filtrate into solipeds. This deter- mined its filterable nature. Francis and Marsteller produced it by the injection of filtrates of blood. This experiment supports the theory that the disease in Europe is the same as that occurring in this country. The virus is present in the urine as well as in the blood. Carre and Vallee found that it was destroyed by heat- ing at 58 C. for one hour. Drying at room temperature does not alter its virulence. It was only after seven months' drying that the virus was rendered inert. It resists putrefac- tion for a long time. Van Es states that in natural conditions the virus is able to withstand the climatic in- fluences of our severe northern win- ters. The Seyderhelms' and the Japanese Commission found that the disease is produced by the larvae of bot-flies (Gastrus larva) which occur in large numbers in the stomach and intestines of infected horses. They claim to have produced the disease by the injection of an extract prepared from these larvse. The Japanese Commission, as a result of their experiments, dis- FiG. 106. PHOTOGRAPH OF LONGiTu- ^'^^ "bots" as haviug nothlug to do DiNAL SECTION OF FEMUR OF HOHSE with thc dlseasc. They believe, how- SHOWING CHANGES IN BONE MAE- ROW {after Udall and Fitch). ever, that the biting horse flies (chry-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectveterin, bookyear1916
