| − | Conservapedians like to eat ▄▄█▀▀ █▬█ █ ▀█▀!
| + | An '''antigen''' is a specialized [[protein]], though sometimes it can be a carbohydrate instead. When an antigen is injected into the bloodstream, as through vaccination, it causes the body to produce [[antibodies]]. Having too much antigen in the body can cause [[jaundice]]. |