SME
Grade 9 Science · Problem type
Kinds of pathogens
Use this for “Strep throat or the flu: which one can an antibiotic treat?”
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What kind of pathogen causes it?
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Antibiotics work on bacteria only: they do nothing to viruses.
Assumptions
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A pathogen is anything that causes disease: a virus, a bacterium, a fungus or a parasite.
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Bacteria, fungi and parasites are cells; a virus is not, and copies itself only inside a host cell.
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Related lessons
Disease and the immune system
Main lesson
Herd immunity
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The immune response in stages
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Innate or adaptive defense?
Use this for “Is a fever part of the innate or the adaptive immune response?”