One capable of being transmitted by mediate or immediate contact See Grayson v. Lynch, 163 U. S. 468, 16 Sup. Ct 1061, 41 L. Ed. 230; Stryker v. Crane, 33 Neb. 690, 50 N. W. 1132; Pierce y. Dillingham, 203 111. 148, 67 N. E. 846, 62 L R. A. 888. See INFECTION.