Anyone who touches or eats the carcass of an unclean animal becomes ritually unclean. (Leviticus 11)

Anyone who touches or eats the carcass of a clean animal that dies of itself, or is torn by wild animals, becomes ritually unclean. (Leviticus 11:29-31)

Any article that has come in contact with a ritually unclean object becomes ritually unclean. (Leviticus 11:31-38)

Menstruous women are ritually unclean. (Leviticus 15:19-24)

Women after childbirth are ritually unclean. (Leviticus 12:2)

Anyone with a spreading skin disease is ritually unclean. (Leviticus 13:2-46)

Any clothing contaminated with a spreading disease is ritually unclean. (Leviticus 13:47-59)

A house contaminated by a spreading disease is ritually unclean. (Leviticus 14:34-57)

A man having an abnormal discharge (zab) is ritually unclean. (Leviticus 15:2-15)

Anyone or anything coming into contact with semen becomes ritually unclean. (Leviticus 15:16-18)

A woman with an abnormal discharge (zabah) is ritually unclean. (Leviticus 15:19, 25-28)

A human corpse and anyone who comes near it is ritually unclean. (Numbers 19:11-16)

The purification water purifies the ritually unclean. (Numbers 19:2-22)

Those ritually unclean must purify at the appointed time by laundering their clothes and immersing in water. (Leviticus 15:27)

Those ritually unclean of a spreading skin disease must follow the specified purification procedure. (Leviticus 14:2-32)

Those unclean of a spreading skin disease must shave off all their hair. (Leviticus 14:9)

Those unclean of a spreading skin disease must be easily distinguishable. (Leviticus 13:45)