Care must be taken not to carry the disease from the sick to the well by Sponges, etc.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
Simple contact between one cow and another may convey the disease, or the Sponges used in cleaning the diseased may carry the virus to the healthy.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
Other investigators state that they have successfully infected cattle by placing, in the nostrils, Sponges or pledgets of cotton saturated with such serum.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler