Interferons are ...........

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(A) Interferons $(IFNs)$ are a group of signaling proteins made and released by host cells in response to the presence of several viruses. They are a

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Antiviral proteins

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(A) Interferons $(IFNs)$ are a group of signaling proteins made and released by host cells in response to the presence of several viruses. They are a type of cytokine that acts as an innate immune response. When a cell is infected by a virus,it secretes interferons,which signal neighboring cells to heighten their antiviral defenses,thereby preventing the spread of the viral infection. Therefore,they are classified as antiviral proteins.

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