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Asked by AimeeAshton - 2 years ago
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joensf Level 75
Answered 2 years ago
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this may help, i don't have your book

http://www.ehow.com/how-does_4601888_an-...
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Hecate Level 45 / Therapist
Answered 2 years ago
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infection is a process in which bacteria, viruses, fungi or other organisms enter the body, attach to cells, and multiply. To do this, they must evade or overcome the body's natural defenses at each step. [ Organisms that can cause illness are all around us: in air, water, soil, and food, as well as in the bodies of animals and other people. Infection occurs when some of them get past a series of natural defenses. Those defenses include: Skin: The skin physically blocks germs, but may let them in if it is cut or scraped. Coughing deeply: This expels germs from the lungs and breathing passages but may be less effective for weak, sick, or injured people. Bacteria: Called "resident flora," harmless bacteria normally are present in some parts of the body. They compete with harmful germs and crowd them out. But they can be weakened or killed by medications, allowing harmful germs to thrive and cause illness. Read more: Infection - body, viral, causes, How Does Infection Occur? www.humanillnesses.com/original/Her-Kid/Infection.html#ixzz1jXix95UO Read more: Infection - body, viral, causes, How Does Infection Occur? www.humanillnesses.com/original/Her-Kid/Infection.html#ixzz1jXit5spl ]
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Sparky5458 Level 62 / Retired
Answered 2 years ago
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Infection is a process in which bacteria, viruses, fungi or other organisms enter the body, attach to cells, and multiply. To do this, they must evade or overcome the body's natural defenses at each step. Infections have the potential to cause illness, but in many cases the infected person does not get sick.

Read more: Infection - body, viral, causes, How Does Infection Occur? http://www.humanillnesses.com/original/H...
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