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Collected Observations Pertaining To Hog Cholera, L. Van Es, J. F. Olney

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

This bulletin reports on the following: (1) the possible role of Salmonella suipestifer in failed vaccinations (vaccination breaks); (2) excessive serum dosages as a cause of vaccination breaks; (3) experiments with crystal-violet hog cholera vaccine and (4) hog cholera vaccine of tissue origin, and (5) phenolized hog cholera virus as a possible vehicle for pathogenic contaminants.