BCG vaccine screened for active tuberculosis. BCG is also contraindicated in certain people who have IL-12 receptor pathway defects. BCG is given as a single intradermal injection at the insertion of the deltoid. If BCG is accidentally given subcutaneously, then a local abscess may form (a "BCG-oma") that can sometimes ulcerate, and may require treatment with antibiotics immediately, otherwise without treatment it could spread the infection causing severe damage to vital organs. However, it is important to note an abscess is not always associated with incorrect administration, and it is one of the more common complications that can occur with the vaccination.
Inoculation theory are many inoculation studies with the intent to inoculate children and teenagers to prevent them from smoking, doing drugs or drinking alcohol. Much of the research shows that targeting at a young age can help them resist peer pressure in high school or college. Godbold and Pfau (2000) used sixth graders from two different schools and applied inoculation theory as a defense against peer pressure to drinking alcohol. They hypothesized that a normative message, a message tailored around what the social norms are, would be more effective than an informative message. An informative message is a message tailored around giving