The simple answer to this question is that drafting and re-drafting will help you to write a better essay. A university essay is a complicated piece of work. You need to draw upon a variety of sources and integrate them with your own ideas.
Adaptive immune defenses. The immune response to viral infection comprises innate and adaptive defenses. The innate response, which we have discussed previously, functions continuously in a normal host without exposure to any virus.Most viral infections are controlled by the innate immune system. key feature of the adaptive immune system is memory. Repeat infections by the same virus are met immediately with a strong and specific response that usually effectively stops the infection with less reliance on the innate system. When we say we are immune to infection with a virus, we are talking about immune memory.
A HealthyWomen answered. Innate immunity is the body's immediate immune system response to a perceived threat. Invaders such as bacteria, viruses and other microorganisms display signs on their surface called antigens that signal immune system cells to action.nnate immunity is the next line of defense after the barriers of the skin and the mucosa. The role of the innate immune system is to attack invading pathogens, triggering an immediate inflammatory response and firing up the next line of defense, the adaptive immune system.