The Parshahs of Tazria and Metzora continue the discussion of the laws of Tumah v'Taharah, ritual impurity and purity.
A woman giving birth should undergo a process of purification, which includes immersing in a mikvah (a naturally gathered pool of water) and bringing offerings to the Holy Temple. All male infants are to be circumcised on the eighth day of life.
Tzaraat ("leprosy") is a supra-natural plague, which can afflict people as well as garments or homes. If white or pink patches appear on a person's skin (dark pink or green in garments or homes), a Kohen is summoned. Judging by various signs, such as an increase in size of the afflicted area after a seven-day quarantine, the Kohen pronounces it tameh (impure) or tahor (pure).
A person afflicted with tzaraat must dwell alone outside of the camp (or city) until he is healed. The afflicted area in a garment or home must be removed; if the tzaraat recurs, the entire garment or home must be destroyed.
When the metzora ("leper") heals, he or she is purified by the Kohen with a special procedure involving two birds, spring water in an earthen vessel, a piece of cedar wood, a scarlet thread and a bundle of hyssop.
Ritual impurity is also engendered through a seminal or other discharge in a man, and menstruation or other discharge of blood in a woman, necessitating purification through immersion in a mikvah.
