History of the Peloponnesian War

This year, by confession of all men, was of all other, for other diseases, most free and healthful. If any man were sick before, his disease turned to this;

if not, yet suddenly, without any apparent cause preceding and being in perfect health, they were taken first with an extreme ache in their heads, redness and inflammation of the eyes; and then inwardly, their throats and tongues grew presently bloody and their breath noisome and unsavoury.