difference between virus and germs
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Bacteria are single-celled organisms that live all around us — including inside our gut. Most bacteria aren't harmful, and some are even protective. However, a small percentage can be harmful and cause illness. Viruses are parasitic, which means they need a live host in order to survive
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Bacteria are a type of biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats.
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