Thucydides with Richard Crawley, trans., History of the Peloponnesian War (London, England: J.M. Dent & Sons, Ltd., 1910), Book III, § 51, pp. 131–32. From pp. 131–32: " … there was the awful spectacle of men dying like sheep, through having caught the infection in nursing each other. This caused the greatest mortality. On the one hand, if they were afraid to visit each other, they perished from neglect; indeed many houses were emptied of their inmates for want of a nurse: on the other, if they ventured to do so, death was the consequence."
Lucretius with Rev. John S. Watson, trans., On the Nature of Things (London, England: Henry G. Bohn, 1851), Book VI, lines 1093–1130, pp. 291–92; see especially p. 292. From p. 292: "This new malady and pest, therefore, either suddenly falls into the water, or penetrates into the very corn, or into other food of men and cattle. Or even, as may be the case, the infection remains suspended in the air itself; and when, as we breathe, we inhale the air mingled with it, we must necessarily absorb those seeds of disease into our body."
Santer M (2009). “Richard Bradley: a unified, living agent theory of the cause of infectious diseases of plants, animals, and humans in the first decades of the 18th century”. Perspectives in Biology and Medicine52 (4): 566–78. doi:10.1353/pbm.0.0124. PMID19855125.
Singer, Charles and Dorothea (1917) "The scientific position of Girolamo Fracastoro [1478?–1553] with especial reference to the source, character and influence of his theory of infection," Annals of Medical History, 1 : 1–34; see p. 14.
Santer M (2009). “Richard Bradley: a unified, living agent theory of the cause of infectious diseases of plants, animals, and humans in the first decades of the 18th century”. Perspectives in Biology and Medicine52 (4): 566–78. doi:10.1353/pbm.0.0124. PMID19855125.