Leviticus 13:47

Leprosy in garments and houses is unknown in these times and places, which is not strange, there being some diseases peculiar to some ages and countries. And that such a thing was among the Jews, cannot reasonably be doubted; for, if Moses had been a deceiver, a man of his wisdom would not have exposed himself to the contempt of his people, by giving laws about that which their experience showed to be but a fiction.