...All night we could hear the sick muttering and raving in delirium, but from years of association with disagreeables we had no fear of the infection... 
Samuel White Baker 「In the Heart of Africa」
...The best gum is selling atAkka for six dollars a quintal: they will notbring it here, fearing the infection...
Abd Salam Shabeeny 「An Account of Timbuctoo and Housa Territories in the Interior of Africa」
...Nothing was knownof the method of infection or the transference from host to host orspecies to species, and both departments asked for specimens forexamination...
William T. Hornaday 「Our Vanishing Wild Life」
...Into flocks anointed in theold manner it may be carried by infection, but will seldom or neverarise spontaneously among them...
Ambrose Blacklock 「A Treatise on Sheep:」
...Manyinvestigators have demonstrated that the infection is transmitted through thedigestive tract, through contaminated feed and water...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...From the official reports it appears that thenumber of infected districts and of diseased animals had rapidly diminished,but it was not until 1898 that the infection was finally eradicated...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...They also state thatanimals which have passed through the disease may be a source of infection forseveral months after recovery...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Thedistinction is apparent in these diseases by the lack of vesicular eruption onthe mucous membrane or skin, and also by lack of evidences of infection in theherd or neighboring animals...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
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