The Immune System 377
Pathogens
Cause Infectious
Disease
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on page.
Germ Theory
and Koch’s
Experiments
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on page.
Spread of
Disease
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on page.
Identify facts about harmful and helpful microorganisms.
Section 37.1 Infectious Diseases (continued)
Main Idea Details
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Five types of pathogens:
1.
2.
3.
4.
5.
Four places that helpful micro-
organisms live in your body:
1.
2.
3.
4.
Design the experimental steps you would use to identify the virus
that caused bird flu in a flock of chickens using Koch’s postulates.
Three disease reservoirs:
1.
2.
3.
Four main ways diseases are
transmitted to humans:
1.
2.
3.
4.
4.
3.
2.
1.
Analyze how diseases spread.