From Peaceful Coexistence to Potential Peril: The Bacteria That Live in and on Us

Our body depends on some bacteria for survival, while other forms of bacteria are life threatening

Hand washing is an effective way to help prevent the spread of potentially dangerous bacteria. rawpixel/unsplash

Bacteria are everywhere, including in and on our bodies. There are estimated to be as many bacteria in the human body as there are human cells.

Much like Pig Pen in the Peanuts comic strip, we actually carry around a cloud of bacteria in the air surrounding us.