[Diseases in the metaphor of Persius]

Medical metaphora is quite widespread in ancient literature; the description of a sick body is often used by Greek and Roman philosophers and writers to define a critical condition of the State, in which just one corrupt part can ruin the entire system. Especially Persius, in his Satire, uses this way of expression to flog Roman people's corrupt habits. Reading Persius' poems and studying his satiric metaphora, in comparing it to Ippocrates' description of a considerabe number of diseases, we can reconstruct the degree of diffusion of the Greek ancient medicine in Rome in the I century A.D., before Galen's arrival.