The Different Types of Antibodies

Is there like a ready to go army or civil defense that's in all the different tissues looking for any kind of trouble? What a great question. So we have something called secretory IgA or mucosal antibody. And that's the antibody that really is at the mucosa. It's along the mucosa in the in your nose, your respiratory tract, your GI tract. But the vaccines don't induce secretory IgA because the cells that make it are lining the mucosa and aren't in muscle of your arm where you get the vaccine.