Or if he touches human uncleanness—anything by which one becomes unclean—even if he is unaware of it, when he realizes it, he is guilty.
Jewish Publication Society of America Version (JPS1917) - Leviticus 5:3 >or if he touch the uncleanness of man, whatsoever his uncleanness be wherewith he is unclean, and it be hid from him; and, when he knoweth of it, be guilty;