Defilement: Ceremonial Caused by Having a Leprosy
Source: TTT
Leviticus 13:3, 11
The priest is to examine the infection on his skin, and if the hair in the infection has turned white and the sore appears to be deeper than the skin, it is a skin disease. After the priest examines him, he must pronounce him unclean. / it is a chronic skin disease and the priest must pronounce him unclean. He need not isolate him, for he is unclean.
Numbers 5:2, 3
“Command the Israelites to send away from the camp anyone with a skin disease, anyone who has a bodily discharge, and anyone who is defiled by a dead body. / You must send away male and female alike; send them outside the camp so they will not defile their camp, where I dwell among them.”