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What results when a free-rider problem exists
Histamine
A compound released by cells in response to injury and in allergic and inflammatory reactions, causing contraction of smooth muscle and dilation of capillaries.
Protease Inhibitors
Substances or drugs that inhibit the action of proteases (enzymes that break down proteins), used in various therapies including the treatment of viral infections.
Reverse Transcriptase
An enzyme used by retroviruses to transcribe their RNA into DNA, integrating the viral genome into the host's genome.
Glycoproteins
Proteins that have carbohydrate groups attached to the polypeptide chain.
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