October 20, 2021
A vaccine is a biomaterial prepared from a microorganism or part of a microorganism that has a mechanism that induces the body to create immunity specific to that microorganism, that is, to have a specific immunity against a disease. Vaccines generally consist of a component of the causative microorganism (antigen) that has been weakened, killed, or the use of a weakened toxoid (toxoid). Vaccines stimulate the body's immune system and can recognize it. that is a pathogenic substance, which will have a mechanism of further destruction The immune system's antigen-recognition properties allow the body to eliminate the antigen if it is given later more quickly. Vaccines were first developed in the 1770s by English scientist Edward Jenner. Successfully extracted cowpox to prevent small pox in humans. Vaccines in the early stages are for the introduction of lethal or the use of weakened organisms only. Until now, it has been developed using recombinant technology to help in the development of molecular biology knowledge. There are also efforts to develop a vaccine by synthesizing antigens to produce subunit vaccines. The word 'vaccine' comes from Edwards when cowpox was given to humans. The word variolæ vaccinæ comes from the word vaccīn-us or vacca, which means cow, which is related to cowpox.