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 also can afflict garments. If white or pink patches appear on a person’s skin (dark red or green in garments), 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 is removed; if the tzaraat spreads or recurs, the entire garment must be burned.