Tonsillitis : Causes
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The tonsils are lymph nodes in the back of the mouth and top of the throat. They normally help to filter out bacteria and other microorganisms to prevent infection in the body. They may become so overwhelmed by bacterial or viral infection that th...
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Tonsillitis is an infection and swelling of the tonsils, which are oval-shaped masses of lymph gland tissue located on both sides of the back of the throat.
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Tonsillitis is an infection and swelling of the tonsils, which are oval-shaped masses of lymph gland tissue located on both sides of the back of the throat.
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Tonsillitis is an infection and swelling of the tonsils, which are oval-shaped masses of lymph gland tissue located on both sides of the back of the throat.
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Bacteria are prokaryotes (unicellular organisms with no membrane-enclosed nucleus) with simple structures that typically range in size from about 0.5 to 20 micrometers.
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The bacterium Heliobacter pylori is the only one that can survive inside the human stomach. It causes gastritis and ulcers, but is generally treatable with a combination of antibiotics.
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A virus is an infectious agent, often highly host-specific, consisting of genetic material surrounded by a protein coat. Viruses infect virtually every life form, including humans, animals, plants, fungi , and bacteria .
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Viruses are familiar from the common diseases they cause: colds and flu, for instance. But what are they, and how do they cause sickness?
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