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Normal flora
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Harmless microbes that live in our skin and our bodies
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Pathogens
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Microbe that can cause illness
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Opportunistic microbe
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Microbe that can change from harmless to pathogenic
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Endospore
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hard shell that makes it difficult to kill some types of bacteria using in standard infection control methods
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Aerobic bacteria
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Bacteria that need oxygen to live
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Anaerobic bacteria
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Bacteria that die is oxygen is present