What is to send a word to killer T cells and activate B cells?

To send a Word to killer T cells and activate B cells, the immune system uses signaling molecules called cytokines. These cytokines are released by activated helper T cells, which recognize specific antigens. Once released, these cytokines stimulate killer T cells to target and destroy infected or cancerous cells, while also activating B cells to produce antibodies that neutralize pathogens. This coordinated response is crucial for an effective adaptive immune response.