Definition of vaccine and the difference between vaccination and immunization

Vaccine is a substance used to stimulate the production of antibodies and provide immunity against one or several diseases, prepared from the causative agent of a disease, its products, or a synthetic substitute, treated to act as an antigen without inducing the disease. Vaccination is when a vaccine is administered to you (usually by injection). Immunization is what happens in your body after you have the vaccination. The vaccine stimulates your immune system so that it can recognize the disease and protect you from future infection (i.e. you become immune to the infection). ‘Vaccination’ and ‘immunization’ are often used interchangeably but their meanings are not exactly the same. I hope this helps! Follow if helpful or fun! Thanks!!! :D

Vaccine- a substance used to stimulate the production of antibodies. A vaccination is when the substance is injected into you, to begin working. An immunization occurs after the vaccination. It protects you from the disease for a certain time period. They're used interchangeably, but have different meanings. Hope this could help!

A vaccine is used to protect against diseases, viruses, or infections. It is something that causes the body to produce antibodies (markers that tell white blood cells if there are any dangerous pathogens in your body). A vaccination is simply having a vaccine used on you or another person. For example, "He was vaccinated against the flu just last month." Immunization is a general word to describe one becoming immunized to disease or infection. It does not necessarily have to be a vaccine. Note that a vaccine usually refers to an injection of some sort, and immunization can simply be exposure to a substance until the body does not react. Clarifying example: one can be immunized (by slowly exposing themselves to larger doses) against poison, but not vaccinated against poison.