Is our environment really filled with that much bacteria?

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When I was a kid, my parents told me that everyday items are always filled with bacteria, such as banknotes, tabletops, keyboards, smartphones, floor (pick up your fallen food within 5 seconds or it will be infected with bacteria), I grew up told there are millions of bacteria under the fingernails all the time, is this really true? How can they be always there and survive that long if they are on the floor, banknotes etc.? They are living organisms, need to eat something, right? For my thinking there is nothing to eat on the banknotes normally. Can anyone bust this myth or confirm? Thanks in advance.

In: Biology

28 Answers

Anonymous 0 Comments

Yes. There is bacteria, fungus, viruses, archaea, protozoa, algae, and others living on everything, everywhere, all the time. On every surface you touch, in every breath you take, on everything you put in your mouth. It’s pretty amazing to think about.

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