So at least in the beginning, our concentration of antibody that is specific for that antigen will be zero. Now, right away when we're infected, the innate immune system kicks in and we can have the process of inflammation take place that essentially prevents that infection from spreading to other parts of our body. But our adaptive immune system will actually take time to take into effect. And so we're going to have to wait a certain amount of time for our adaptive immune system to mobilize itself and to actually create the appropriate lymphocytes that are needed to create those antibodies. So our adaptive immune system will need to create the appropriate plasma cells that can produce the antibodies that are specific to that infecting antigen. Now, once we have all those plasma cells, once we have all those active lymphocytes, then our antibodies will begin to be produced and those antibodies will be released into our blood.