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 message acceptance and source credibility. This study is relevant to inoculation research in that it lends credence to Miller, et al. (2013), which transparently incorporates psychological reactance theory in conjunction with inoculation theory to improve the quality of persuasive appeals in the future. Following Compton and Pfau's (2009) research on postinoculation talk, Ivanov, et al. (2012) explore how cognitive processing could lead to talk with others after receiving an inoculation message in which threat exists. The authors found that message processing leads to postinoculation talk which could potentially lead to stronger resistance to attack messages. Further, postinoculation talk acts virally,