The cytokine barrier among these is A Polymorphonuclear neutrophil B Monocyte C NK cell D Interferon
D) Cytokine inhibits viral replication. They form an innate immune system by forming physical barriers. Virus-infected cells secrete proteins called interferons which protect non-infected cells from a further viral infection is a cytokine barrier. Hence, The cytokine barrier among these is interferon. Sp, the correct answer is 'interferon'.
