Homes, too, can be afflicted with tzara'at. If stones on a home become discolored — acquiring a strong red or green pigment — a priest is summoned. If indeed the discoloration seems to be tzara'at, the priest quarantines the home for up to three weeks. Depending on the spread of the discoloration, the home is either declared to be pure, or the specific stones are removed from the house, or, in the most extreme situations, the house is demolished. The Torah then describes the purification process for such a home — which is very similar to the initial stage of the purification of the human afflicted with tzara'at (described in the First Aliyah). After concluding the subject of tzara'at, the Torah discusses the ritual impurity of a man who issues a sickly and unnatural seminal discharge, as well as the method by which this person attains purity when the condition passes.