Not until the plagues of the Middle Ages did medical doctors learn to apply this principle, which is still deemed effective. ​ — Leviticus, chapters 13 and 14.
आज भी चिकित्सा क्षेत्र में इस सिद्धांत को माना जाता है । ​ — लैव्यव्यवस्था, अध्याय 13 और 14.