These things can activate plasma B cells which also make antibodies. And then memory T cells activate the cytotoxic T cells. They have a very important job of keeping the memory of the invaders. These are a part of the vaccine process as well. Which is when they introduce an inactive or weak pathogen, these don't give the body a disease but they let the immune responses practice on them. This may trigger the memory cells that will definitely attack when they encounter the pathogen.
I remember him haha
Anyways this is the story of my life as a pathogen who tries to invade the human body and go through this. We go through many scary things while trying to invade the body from the immune system but some of us never learn and go back in which makes the scary memory cells to quickly attack us.
By: Sirajun Swarna
The End of the Journey of a Pathogen through the immune system