Blindness by José Saramago — Read

The suggestion had come from the minister himself. It was, whichever way one looked at it, a fortunate not to say perfect idea, both from the point of view of the merely sanitary aspects of the case and from that of the social implications and their political consequences. Until the causes were established, or, to use the appropriate terms, the etiology of the white evil, as, thanks to the inspiration of an imaginative assessor, this unpleasant-sounding blindness came to be called, until such time as treatment and a cure might be found, and perhaps a vaccine that might prevent the appearance of any cases in the future, all the people who had turned blind, as well as those who had been in physical contact or in any way close to these patients, should be rounded up and isolated so as to avoid any further cases of contagion, which, once confirmed, would multiply more or less according to what is mathematically referred to as a compound ratio.

Quod erat demonstrandum, concluded the Minister. According to the ancient practice, inherited from the time of cholera and yellow fever, when ships that were contaminated or suspected of carrying infection had to remain out at sea for forty days, and in words within the grasp of the general public, it was a matter of putting all these people into quarantine, until further notice. These very words, Until further notice, apparently deliberate, but, in fact, enigmatic since he could not think of any others, were pronounced by the Minister, who later clarified his thinking, I meant that this could as easily mean forty days as forty weeks, or forty months, or forty years, the important thing is that they should stay in quarantine.