As long as he has the infection, he remains unclean. He must live alone in a place outside the camp.
KJV
All the days wherein the plague [shall be] in him he shall be defiled; he [is] unclean: he shall dwell alone; without the camp [shall] his habitation [be].
ASV
All the days wherein the plague is in him he shall be unclean; he is unclean: he shall dwell alone; without the camp shall his dwelling be.