What are Harmful Bacteria?
Bacteria are a Kingdom of prokaryotes, the earliest type of life on earth. Bacteria can be traced back billions of years, and there are an unknown, but massive, amount of bacteria on the planet today. The unifying quality of all bacteria is that they are single-celled micro-organisms, and the vast majority are so small they can only be viewed under a microscope, although there are a rare few that can just barely be seen with the naked eye. The majority of bacteria are not harmful bacteria, and are known as nonpathogenic bacteria, comprising more than two-thirds of all the bacteria on earth. Nonpathogenic bacteria are found on and in everything, from skin, to water, to our stomachs. Nonpathogenic bacteria actually are necessary to the healthy functioning of any life form, assisting with vital functions like digestion. Nonpathogenic bacteria are constantly moving through our systems, and cause no harm, except in very rare circumstances. Harmful bacteria, however, known as pathogenic bact