Innate immunity and viral evasion
If a virus attacks us, our immune system registers this attack and starts a whole chain of reactions. Messengers initiate the release of cellular proteins, through which our cells prevent the spread of viruses – known as antiviral factors. However, some viruses have developed very effective strategies against these antiviral factors, so that the self-protection mechanism of the cells is ultimately insufficient to defend against the infection. Wanted: new antiviral factors which can fight off even these viruses – of which HIV is one.