BCG vaccine immunity against human tuberculosis. The BCG vaccine can be anywhere from 0 to 80% effective in preventing tuberculosis for a duration of 15 years; however, its protective effect appears to vary according to geography and the lab in which the vaccine strain was grown. A number of different companies make BCG, sometimes using different genetic strains of the bacterium. This may result in different product characteristics. OncoTICE, used for bladder instillation for bladder cancer, was developed by Organon Laboratories (since acquired by Schering-Plough, and in turn acquired by Merck & Co.). Pacis BCG, made from the Montréal (Institut Armand-Frappier) strain,
Inoculation theory a Mac or a Windows-based PC computer or if one should support gay marriage. Implementing inoculation theory in studies of contemporary social issues (from mundane to controversial social issues), the variety and resurgence of studies using inoculation theory helps bolster the effectiveness and utility of the theory and provides support that it can be used to strengthen and/or predict attitudes. McGuire led a series of experiments assessing inoculation's efficacy and adding nuance to our understanding for how it works (for a review, see Compton, 2013; Compton & Pfau, 2005). Early studies (e.g., McGuire & Papageorgis, 1961) limited testing of inoculation