5 Bible Verses about Sanitation, Disinfection

"Speak to the children of Israel, saying, 'If a woman conceives, and bears a male child, then she shall be unclean seven days; as in the days of her monthly period she shall be unclean. In the eighth day the flesh of his foreskin shall be circumcised. She shall continue in the blood of purification thirty-three days. She shall not touch any holy thing, nor come into the sanctuary, until the days of her purifying are completed.read more.
But if she bears a female child, then she shall be unclean two weeks, as in her period; and she shall continue in the blood of purification sixty-six days.

As for your birth, in the day you were born your navel was not cut, neither were you washed in water to cleanse you; you weren't salted at all, nor swaddled at all.

"'By these you will become unclean: whoever touches the carcass of them shall be unclean until the evening. Whoever carries any part of their carcass shall wash his clothes, and be unclean until the evening. "'Every animal which parts the hoof, and is not cloven-footed, nor chews the cud, is unclean to you. Everyone who touches them shall be unclean.read more.
Whatever goes on its paws, among all animals that go on all fours, they are unclean to you. Whoever touches their carcass shall be unclean until the evening. He who carries their carcass shall wash his clothes, and be unclean until the evening. They are unclean to you. "'These are they which are unclean to you among the creeping things that creep on the earth: the weasel, the rat, any kind of great lizard, the gecko, and the monitor lizard, the wall lizard, the skink, and the chameleon. These are they which are unclean to you among all that creep. Whoever touches them when they are dead, shall be unclean until the evening. On whatever any of them falls when they are dead, it shall be unclean; whether it is any vessel of wood, or clothing, or skin, or sack, whatever vessel it is, with which any work is done, it must be put into water, and it shall be unclean until the evening; then it will be clean. Every earthen vessel, into which any of them falls, all that is in it shall be unclean, and you shall break it. All food which may be eaten, that on which water comes, shall be unclean; and all drink that may be drunk in every such vessel shall be unclean. Everything whereupon part of their carcass falls shall be unclean; whether oven, or range for pots, it shall be broken in pieces: they are unclean, and shall be unclean to you. Nevertheless a spring or a cistern in which water is a gathered shall be clean: but that which touches their carcass shall be unclean. If part of their carcass falls on any sowing seed which is to be sown, it is clean. But if water is put on the seed, and part of their carcass falls on it, it is unclean to you. "'If any animal, of which you may eat, dies; he who touches its carcass shall be unclean until the evening. He who eats of its carcass shall wash his clothes, and be unclean until the evening. He also who carries its carcass shall wash his clothes, and be unclean until the evening.

"'The flesh that touches any unclean thing shall not be eaten. It shall be burned with fire. As for the flesh, everyone who is clean may eat it;

"He who is to be cleansed shall wash his clothes, and shave off all his hair, and bathe himself in water; and he shall be clean. After that he shall come into the camp, but shall dwell outside his tent seven days.