Man is called homo sapiens, but judging by the huge amount of bacteria living in our bodies, homo bacteriens would have been a perfectly suitable name too.
Picture this: we have 10 trillion human cells (or eukaryotic cells) in our bodies, which is a lot. But we have even more bacterial cells (or prokaryotic cells). It’s estimated we have as many as 30-50 trillion bacterial cells. These trillions of bacterial cells make up over 1000 species that live in and on our body.
This raises a fundamental question: why doesn’t this enormous bacterial population cause continuous infections in our body, as they contain one of the most potent pro-inflammatory components (LPS)?
You can find an explanation in this manuscript by B. Henderson en M. Wilson of the department of Microbiology, University College London.