What are the characteristics of antibody responses to polysaccharides and lipids? What types of bacteria stimulate mostly these kinds of antiboday responses?
They go for T independent pathway. Major antibody produced is IgM. What type of bacterial stimulate these types ? Microbes will need to express polysaccharides or lipids but most of microbes can resist phagocytosis if they resist this what happens? They will not be able to be seen by T cells. If the T cells cannot see them, we have to use antibody to combat these pathogens. That is why its T independent. They cannot function and see antigen. Most will produce T independent pathway.