5 Bible Verses about Sanitation, Disinfection

“Tell the Israelites: When a woman becomes pregnant and gives birth to a male child, she will be unclean seven days, as she is during the days of her menstrual impurity. The flesh of his foreskin must be circumcised on the eighth day. She will continue in purification from her bleeding for 33 days. She must not touch any holy thing or go into the sanctuary until completing her days of purification. read more.
But if she gives birth to a female child, she will be unclean for two weeks as she is during her menstrual impurity. She will continue in purification from her bleeding for 66 days.

As for your birth, your umbilical cord wasn’t cut on the day you were born, and you weren’t washed clean with water. You were not rubbed with salt or wrapped in cloths.

“These will make you unclean. Whoever touches their carcasses will be unclean until evening, and whoever carries any of their carcasses must wash his clothes and will be unclean until evening. All animals that have hooves but do not have a divided hoof and do not chew the cud are unclean for you. Whoever touches them becomes unclean. read more.
All the four-footed animals that walk on their paws are unclean for you. Whoever touches their carcasses will be unclean until evening, and anyone who carries their carcasses must wash his clothes and will be unclean until evening. They are unclean for you. “These creatures that swarm on the ground are unclean for you:

the weasel, the mouse,
any kind of large lizard,
the gecko, the monitor lizard,
the common lizard, the skink,
and the chameleon. These are unclean for you among all the swarming creatures. Whoever touches them when they are dead will be unclean until evening. When any one of them dies and falls on anything it becomes unclean—any item of wood, clothing, leather, sackcloth, or any implement used for work. It is to be rinsed with water and will remain unclean until evening; then it will be clean. If any of them falls into any clay pot, everything in it will become unclean; you must break it. Any edible food coming into contact with that unclean water will become unclean, and any drinkable liquid in any container will become unclean. Anything one of their carcasses falls on will become unclean. If it is an oven or stove, it must be smashed; it is unclean and will remain unclean for you. A spring or cistern containing water will remain clean, but someone who touches a carcass in it will become unclean. If one of their carcasses falls on any seed that is to be sown, it is clean; but if water has been put on the seed and one of their carcasses falls on it, it is unclean for you. “If one of the animals that you use for food dies, anyone who touches its carcass will be unclean until evening. Anyone who eats some of its carcass must wash his clothes and will be unclean until evening. Anyone who carries its carcass must wash his clothes and will be unclean until evening.

“Meat that touches anything unclean must not be eaten; it is to be burned up. Everyone who is clean may eat any other meat.

The one who is to be cleansed must wash his clothes, shave off all his hair, and bathe with water; he is clean. Afterward he may enter the camp, but he must remain outside his tent for seven days.