Both Sides of Bacteria
All bacteria is not negative. There are some types of bacteria that humans could not lie without! There is good bacteria in your body that help you to digest the foods that you eat like GI Jake and also help to fight off invading microbes. There are also good bacteria in dairy products that most people eat like yogurt and cheeses.
Bad bacteria is everywhere. It is essentially inescapable. The upside to this is that very few types of bacteria is actually harmful. Some bacteria make you sick while others invade your food and water making it unsafe. Bad bacteria can form in your food or water when the environment is dirty. It doesn't take much for bad bacteria to grow or to make you sick!