. Common diseases of farm animals. Veterinary medicine. 280 INFECTIOUS DISEASES Anti-Log-eholcra serum is produced by injecting directly, or indirectly, into the blood-vessels of an immune hog a large quan- tity of cholera virus, secured by bleeding a hog that is fatally sick with acute cholera, and bleeding the injected animal after it has completely recovered from the injection. The injection of the cholera blood is for the purpose of stimulating the produc- tion of antibodies by the body tissues, and raising the protective properties of the immune hog's blood. An animal so treated is called
. Common diseases of farm animals. Veterinary medicine. 280 INFECTIOUS DISEASES Anti-Log-eholcra serum is produced by injecting directly, or indirectly, into the blood-vessels of an immune hog a large quan- tity of cholera virus, secured by bleeding a hog that is fatally sick with acute cholera, and bleeding the injected animal after it has completely recovered from the injection. The injection of the cholera blood is for the purpose of stimulating the produc- tion of antibodies by the body tissues, and raising the protective properties of the immune hog's blood. An animal so treated is called a hyperimmune (Fig. 85). The blood from the hyper- immunes is defibrinated and a preservative added, and after it. Fig. 85.—Hyperimmune hogs used for the production of anti-hog-cholera serum. has been tested for potency and freedom from contaminating organisms, it is ready for use. The Vaccination of Hogs with Anti-hog-cholera Serum.— The vaccination of a hog by the single method consists in inject- ing hypodermically or intramuscularly anti-hog-cholera serum. The immunity conferred may not last longer than three or four weeks. The vaccination of a hog by the dnuhle method, consists in injecting hypodermically or intramuscularly anti-hog-cholera serum and hog-cholera blood. The vaccination or treatment of a cholera hog showing notice-. 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 original Craig, Robert Alexander, 1872-. Philadelphia London, J. B. Lippincott company
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Keywords: ., bookpublisherphilad, booksubjectveterinarymedicine, bookyear1919
