Fortune Telling Collection - Ziwei fortune-telling - Why are there many bacteria on dirty hands? What do bacteria on the skin live on?

Why are there many bacteria on dirty hands? What do bacteria on the skin live on?

Because hands have the most contact with the outside space, and bacteria are very sticky, especially dirty hands. In addition to absorbing microorganisms, bacteria on the skin mainly rely on air to survive and survive. Bacteria can survive not only on the skin, but also on quite a few occasions.