Here, then, was leprosy easy to recognize, since it had the whiteness of snow. Let us not forget this peculiar feature, for we shall see it again later.
From this incident we see clearly that the disease was by no means unknown to Moses, because on seeing his hand he said: “Leprosam instar nevis.” Therefore we have a right to believe that the disease existed before Moses. To the support of this opinion Dom Calmet, in his Biblical Dictionary, cites Manetho the Egyptian, Lysimarchus, Appian, Tacitus, and Justin, who have advanced the idea that the Jews went out from Egypt on account of the leprosy. Each one of these historians narrates the events in his own fashion, but all agree that the Hebrews who left Egypt were attacked by leprosy.
Not only does leprosy fasten on mankind, but it clings to clothing and to the stone walls of houses. It is to be presumed, however, that the leprosy brought by the Israelites out of Egypt was not of this malignant type; for Moses, by the order of God, takes pains to mention another and more virulent kind known in the land of Chanaan, the promised land of the Israelites.
In Leviticus, chapter xiii., we find the following: “If there be a spot, greenish or reddish, in the garment, of wool or of skin, the garment must be shown to the priest; and the priest shall look on the plague, and shut it up for seven days; and if at the end of the time the spots have spread, the priest will burn the garment, for it is a fretting leprosy. If the priest find, however, that the spots have not spread, he shall order the garment to be washed; and, behold, if the plague have not changed his color, and be not spread, it is unclean: thou shalt burn it in the fire.”
As to the suspected taint of leprosy in their houses, let us see their method of proceeding: “When you be come into the land of Chanaan, if you think there be leprosy in the house, he that owneth the house shall go to the priest, who shall order the house to be emptied. If the priest finds in the walls hollow streaks, greenish or reddish, he shall shut the house for seven days. The priest shall come again the seventh day, and shall look; and if the plague be spread, the stones shall be taken away, and cast into an unclean place without the city. Then the rest of the house shall be scraped within and without, and they shall pour the dust without the city, and they shall take other stones and put them in the place of these, and other mortar to plaster the house.
“And if the plague come again, and break out in the house, it is a fretting leprosy, and the house is unclean and shall be destroyed.”
Thus it is seen that the leprosy known to the ancients—this lamentable scourge, “this eldest daughter of death”—attacked in its fury not man alone, but his clothing and the very walls of his house. The primary cause of an evil so malignant and so wide-spread must for ever remain a mystery. The learned Dom Calmet, as commentator of the Bible rather than as a physician, offers a theory in his notes on Leviticus. He maintains that the disease is caused by a multitude of minute worms. These parasites glide between skin and flesh, gnawing the epidermis and the cuticle, and then the nerves, producing, in short, all the symptoms that are remarked in the beginning, the progress, and the end of leprosy. Dom Calmet concludes by saying that “venereal diseases are but forms of leprosy which were only too well known to the ancients.” In this century leprosy still exists in some portions of Italy and in Norway to a very considerable extent, according to the reports of Drs. Danielson and Boëk. It is still to be met with in Turkey in the village of Looschori—the ancient Mytilene of the Ægean Sea—in the Indian Archipelago, on the coast of Africa, and in the West Indies. I myself have seen it in Jerusalem and at Naplouse, ancient Samaria; at Damascus also, where there is a lazaretto very poorly supported by public charity. To Mr. Charles A. Dana, one of the editors of the New American Cyclopædia, the maladie de Tracadie is not unknown; for he says that leprosy exists in Canada and in other portions of America.
But to return to the Scriptures: Moses is not the only one of the inspired writers who speaks of leprosy, and more than once our blessed Lord, on his journeys through Judea, exercised his charity and showed his goodness by curing lepers who threw themselves at his feet, entreating mercy. Job was struck by the hand of God with this scourge, and has described it with marvellous beauty and pathos. He was forsaken by his wife and his friends in his humiliation and suffering; they shrank from him, saying that he must have committed some fearful crime to have drawn upon himself so heavy a chastisement. A similar horror of this disease existed among all nations. In Pérsia no citizen infected by it could enter a village or have any intercourse with his fellow-creatures, while a stranger was driven pitilessly forth into the desert (Herod., Clio).
Æschines, giving an account of his sea voyage, states that, the ship putting into Delos, they found the inhabitants suffering from leprosy, and the travellers hurried away in fear and trembling, lest they themselves should fall victims.
In Egypt Pliny[[30]] says that when this evil attacked kings, it was most unfortunate for their people; for to cure them baths of warm human blood were believed to be efficacious.