Bacteria can harm humans.


There are many diseases that are caused by bacteria. Here are two bacteria and the disease that it causes.
  • Escherichia coli and Salmonella cause food poisoning.
  • Neisseria meningitidis causes meningitis.

Bad Bacteria

The worst bacteria either directly destroys tissue by feeding upon it or produce a toxin that destroys tissue. Other bacteria reacts negatively to food, or are poor fermenters of food, creating symptoms like gas and diarrhea.
And some species of bacteria are bad simply because they take up space. They crowd out the good bacteria and deprive your body of all the health-giving benefits that good bacteria provide, resulting in the poor digestion of food and the poor absorption of nutrients.
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