Curing a leper was considered to be as difficult as raising a person from the dead. Lepers were declared unclean and were abhorred and banished from society.
وَٱسْتِنَادًا إِلَى سِجِلَّاتِ ٱلرَّبَّانِيِّينَ ،‏ لَمْ يَكُنْ يُسْمَحُ لِلْمُصَابِ بِٱلْبَرَصِ أَنْ يَقْتَرِبَ مِنْ شَخْصٍ آخَرَ أَكْثَرَ مِنْ مِتْرَيْنِ .‏