Seth speaks about viruses and epidemics
When you consider epidemics to be the result of viruses, and emphasize their biological stances, then it seems that the solutions are very obvious: You learn the nature of each virus and develop an inoculation, giving [each member of] the populace a small dose of the disease so that a man’s own body will combat it, and he will become immune. The short-sightedness of such procedures is generally overlooked because of the definite short-term advantages.