The priest is to re-examine the contamination on the seventh day. If it has spread in the fabric, the warp, the weft, or the leather, regardless of how it is used, the contamination is harmful mildew; it is unclean.
and if the contamination is green or red in the fabric, the leather, the warp, the weft, or any leather article, it is a mildew contamination and is to be shown to the priest.
He is to burn the fabric, the warp or weft in wool or linen, or any leather article, which is contaminated. Since it is harmful mildew it must be burned.