What percentage of bacteria is classified as non-pathogenic?

Non-pathogenic bacteria make up a significant majority of bacterial species, typically around 70% or more. These bacteria are generally harmless and often play beneficial roles in various ecosystems, including human health where they contribute to processes such as digestion and protecting against pathogenic bacteria. Non-pathogenic bacteria are essential for maintaining a balanced microbiome, and they help perform critical functions in nature and within the human body.

The understanding of the high percentage of non-pathogenic bacteria is fundamental in fields such as microbiology and health sciences. This knowledge helps individuals in the beauty industry, such as nail technicians, to create an environment that promotes a healthy balance of bacteria and to apply proper sanitation practices in their work.