👉 Subvesicular is a medical term that describes the process by which certain cells, such as macrophages or monocytes, are involved in the immune response to infection. In this context, "sub" refers to the cell type that is involved in the immune system, while "vesicles" refer to vesicles that contain antigens, which are proteins that can trigger an immune response. The term comes from the Greek word "sub," which means below, and "vesicle," which is