Chicago Serum Co. v. State

In the year 1915, and for some time prior thereto, the plaintiff was engaged in the manufacture of a substance called Anti-hog Cholera Serum, which was claimed by said Company to prevent hog cholera when swine were innoculated with said substance.

The plaintiff has its principal place of business in the City of Chicago, and State of Illinois. In the fall of 1915 the foot and mouth disease was prevalent in Illinois and other States of the Union, among cattle and hogs. The plaintiff was distributing and selling its product among the hog raisers and the breaking out of the foot and mouth disease…