![](https://www.ase.org.uk/sites/default/files/abpi_infectious_diseases_immunity.jpg)
This ABPI online resource explores immunity, vaccination and immune memory. This resource explores how the human immune system recognises and destroys pathogens inside the body. Pathogens, such as bacteria and viruses, cause damage and disease when they grow and reproduce. Vaccination enables the body to respond more quickly to future infection by that pathogen.