Examlex
The correct sequence of events in the action of interferon is ________________.
1) viral infection of host cells causing rapid production and secretion of Type I IFNs
2) host cell produces antiviral proteins that can degrade viral RNA, inhibit protein synthesis and virion assembly and prevent viral gene expression
3) modification of neighboring cell's gene expression induces an antiviral state
4) binding of IFNs to receptors on uninfected neighboring cells
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