Alpha and beta interferons
A) help protect virus-infected cells from the effects of the pathogen.
B) protect the cells that secrete them from being invaded by a virus.
C) are produced by infected fibroblasts and macrophages.
D) produce active antiviral proteins (AVPs) that coat the surface of healthy cells and prevent the attachment of pathogenic viruses.
E) produce no adverse effects in the body.
C
Bloom's Taxonomy: Comprehension
Section: The Body's Second Line of Defense
Learning Outcome: 15.16
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