They apply to a woman having her monthly period. They apply to a man or woman who has a liquid flow. And they apply to a man who sleeps with a woman who is “unclean.”
“ ‘Suppose a woman is having her regular monthly period. Then for seven days she will be “unclean.” Anyone who touches her will be “unclean” until evening.
“ ‘Suppose a man has sex with a woman during her monthly period. He has uncovered the place where her bleeding was coming from. And she has let him do it. So both of them must be separated from their people.