I read the following on islamqa.info
Quote:
And the Prophet (peace and blessings of Allaah be upon him) said: “Flee from the leper as you would flee from a lion.†Leprosy is a serious disease that is transmitted quickly and kills the one who catches it. It was even said that it is a plague. Hence the command to flee from the leper so that the disease will not be transmitted from him to you.
islamqa.info/amp/en/answers/45694
But in my surgery book it is stated that for leprosy to be transmitted close contact over a long duration (several years) is required.
I am confused. If anyone has knowledge about this please share.