Farmers' bulletin (United States. Dept. of Agriculture); no. 834

"The Bureau of Animal Industry for many years has made a study of the disease [hog cholera] and finally evolved the 'anti-hog-cholera serum,' which ca be regarded as the only known reliable preventive agent. It is the only agent which has been proved to have curative properties. This serum is now manufactured by several State institutions and by private firms licensed by the Secretary of Agriculture for the purpose. The use of the serum is described fully herein, including treatment of herds, brood sows, young pigs, etc.: 1) confine sick hogs, 2) use serum, 3) employ sanitary measures, 4) disinfect, 5) cooperate." -- p. 2. Also includes a discussion about how to identify infected hogs