Key documents for about immunisation for health professionals, including the Green Book (an updated guide to all aspects of immunisation) and the Yellow Book (about immunisations required for foreign travel).
The Green Book is a publicly available document on immunisation against infectious disease, which charts the history of immunisation and immunisation advice over the years since this kind of preventative treatment was first used in 1786. This edition was published in 1996, the bicentennial year of Edward Jenner's world-changing discovery.