Human beings – and our offices – are crawling with microbes

Humans are crawling with microorganisms – indeed, each of us has our own unique microbial ecosystem, otherwise known as a "microbiome". Microorganisms are the smallest forms of life, and the human microbiome includes bacteria, viruses and fungi. There are more microbial cells on and in our bodies than the ten trillion human cells which make us what we are. This microbial life helps us to break down our food, provides vitamins we cannot produce and plays a big role in keeping us healthy.

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