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The conjunctiva is exposed to bacteria and other irritants. Tears help protect the conjunctiva by washing away bacteria. Tears also contain enzymes and antibodies that kill bacteria. There are many causes of conjunctivitis. Viruses are the most co...
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An accurate diagnosis of conjunctivitis centers on taking a patient history to learn when symptoms began, how long the condition has been going on, the symptoms This person has severe conjunctivitis, most likely caused by an allergic reaction. (Cu...
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Accurate diagnosis of conjunctivitis centers on taking the patient's history to learn when symptoms began, how long the condition has been going on, the symptoms experienced, and other predisposing factors. Diagnostic tests may include an eye exam...
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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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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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