Leviticus 22:5
or who becomes unclean by touching a creeping creature or another human being, whatever the uncleanness may be
Leviticus 15:7
"Whoever touches the body of someone with a discharge is to wash his clothes and bathe with water, and he will remain unclean until evening.
Leviticus 11:43-44
You are not to make yourselves detestable on account of any swarming creature that swarms the land, and you are not to defile yourselves and become unclean due to them,
Leviticus 15:19
"When a woman has a discharge, and the blood is her monthly menstrual discharge from her body, then for seven days she is to remain in her menstrual uncleanness. Whoever touches her will remain unclean until evening.
Leviticus 11:24-28
and is unclean. Anyone who touches their carcasses becomes unclean until evening.