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Pathogen - Wikipedia, the free encyclopedia
A pathogen (from Greek πάθος path' "suffering, passion", and γἰγνομαι (γεν-) gignomai (gen-) "I give birth to" ), infectious agent , or (more commonly) germ , is a biological agent that caus...
en.wikipedia.org/wiki/Pathogen |
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White blood cells are responsible for the defense system in the body. ... Emphasize to the students that this process is called phagocytosis, and it is the way in which macrophages, a specific type of white blood cells get rid of pathogens. The prefix phago means eating, and the suffix cyte means cells.
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Diseases may be caused by pathogens that invade the body. The process of this invasion is called ____________? ... Parasites that do not invade the body, but instead attach themselves to the surface is an example of a(n) __________?
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They then enter our body generally through the eyes, nose, or mouth. Pathogens can also gain entrance to the body through open wounds or lesions in the skin. ... Disintegration of collagen and connective tissue are the primary mechanisms by which pathogens invade and spread to other organs.
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Those that invade and cause disease are termed pathogenic. ... ...are harmless under normal conditions and become dangerous only if they somehow pass across the barriers of the body and cause infection. Some bacteria are adept at invasion of a host and are called pathogens, or disease producers.
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A microorganism that affects the human host sufficiently to cause disease or death is called a "pathogen." Not all parasites, for example, are pathogens, ... Different pathogens act in different ways. Some produce toxins, while others invade cells or tissues and then produce toxins. Even when localized in the body,
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