Bacteria are living things that have only one cell. Under a microscope, they look like balls, rods, or spirals. They are so small that a line of 1,000 could fit across a pencil eraser. Most types of don't make you sick. Many types are helpful.
Jun 28, 2018
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Jun 2, 2024 · Bacterial and viral infections have many things in common. Both types of infections are caused by microbes -- bacteria and viruses, ...
Bacteria
Bacteria are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear... Wikipedia
Bacterial infections can affect many parts of your body. Find out about bacterial infections, how they are treated and how to stop them spreading.
Bacteria are transmitted to humans through air, water, food, or living vectors. The principal modes of transmission of bacterial infection are contact, airborne ...