This week’s Torah portion describes the purification of a recovered metzora, or leper, by the priest through a specific procedure involving two birds, spring water stored in an earthen vessel, a piece of cedar wood, a scarlet thread, and a bundle of hyssop. Tzaraat, biblical leprosy, can also afflict a house, which is identified by dark red or green patches on its walls. The priest determines whether the house can be purified or if it must be destroyed, which can take up to nineteen days. The portion concludes by outlining the laws for someone who experiences an impure bodily discharge.