Infectious diseases are caused by pathogens. A pathogen is a living thing or virus that causes disease. Pathogens are commonly called “germs.” They can travel from one person to another.
CK-12 (Middle School)
What pathogens exist and how can people protect themselves from contracting diseases caused by pathogens?
RST.1 - Analysis & Evidence, RST.2 - Main Ideas
DEPTH OF KNOWLEDGE (DOK) LEVELS:
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