Vaccinations
Microorganism that causes disease. are microbes that cause Illness affecting plants and animals.. Substances containing disabled antigens of a particular disease, usually administered via injection. Vaccines stimulate the body to produce antibodies to provide immunity against that disease. allow a dead or altered form of the disease causing pathogen to be introduced into the body, which contain a specific A protein on the surface of a substance (often a pathogen) that triggers an immune response.. This causes the immune system, specifically the A type of cell found in blood that defends against infection., to produce complementary A protein produced by the immune system in humans (and other animals) that attacks foreign organisms (antigens) that get into the body., which target and attach to the antigen. When a white blood cell engulfs and digests a pathogen it is called phagocytosis.
During the The first time an organism becomes infected by a particular pathogen. the antibodies slowly increase, peak at around ten days and then gradually decrease. A second exposure to the same pathogen causes the white blood cells to respond quickly in order to produce lots of the relevant antibodies, which prevents infection.