IMMUNOLOGY

Detailed explanation-1: -However, because they replicate within the cell, viruses are vulnerable to intracellular alterations caused by host responses to infection. Nonspecific responses that alter the intracellular environment include fever, inflammation, and interferon.

Detailed explanation-2: -The non-specific immune response is our immediate response to infection and is carried out in exactly the same way regardless of the pathogen (i.e. it is not specific to a particular pathogen). The non-specific immune response involves inflammation, the production of interferons and phagocytosis.