Let's suppose some type of virus infects our cell and this is the infected cell shown in red. So the virus injects some type of RNA or DNA into that cell infecting that cell. Now, how exactly does our innate non specific immune system deal with these types of viral and parasitic infections? Well, what happens is the infected cell begins to produce a biological molecule known as an interferon and we have many different types of interferons. So these purple molecules here are the interferon. So the infected cell begins to produce these interferons and the cell releases these interferons to the surrounding environment.