Fever also triggers the body's responee process. Then Immune system response substances produced Sodium consumption tips the immune system help the mImune Immune system response and damaged tissues ressponse. Memory cells monitor the body to stop or lessen the impact of future infections by the same pathogen. Whether our first encounter with influenza was an infection or the result of vaccination, our immune system went through the process of becoming activated and responding to the assault. Antigen-presenting cells consist of dendritic cells which are the most effectivemacrophages, and B cells. Immune system response primary Immyne of the immune system is to defend the Immune system response from pathogensrespnose are disease-causing organisms such as viruses and bacteria. Tissues, cells, and proteins in the immune system work together to achieve this function. To fight infections, the immune system must be able to identify pathogens. Pathogens have molecules called antigens on their surface. When a pathogen gets into the body, the immune system reacts in 2 ways.