When a foreign body or organism enters our body and causes harm, they result in an infection or a disease. This foreign organism uses our body’s healthy cells to colonize, sustain and reproduce itself. These infection causing organisms are known as pathogens and examples include viruses, bacteria, prions and fungi. Pathogens can adapt to our body’s conditions easily and multiply quickly. Bacteria and Virus are two such ‘foreign bodies’ that can lead to infection (called viral infection) and diseases (called bacterial diseases) in humans. So, what is the difference between the two?
Bacteria are tiny microorganisms that are made up of a single cell. They are of various types and have a large variety of shapes and structural features. Bacteria can live in almost every imaginable environment, including inside the human body or on it. The good news is that only a few bacteria cause infections in humans. They are called pathogenic bacteria.
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