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This program presents the human body as a complex ecosystem of bacteria, then examines each portion of the body, which bacteria live there, and why. The three major bacterial groups—sphere-shaped cocci, rods, and helical spirochetes and spirilla—are examined. Their behavior when interacting within the body is explored. The life and death of obligate aerobes, facultative anaerobes, and obligate anaerobes is described. A discussion of factors that encourage bacterial growth leads to specific information on which bacteria cause certain conditions, and how infection can be avoided. (41 minutes, color)
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