BCG vaccine and one disaster, in particular, did much to harm public acceptance of the vaccine. In the summer of 1930 in Lübeck, 240 infants were vaccinated in the first 10 days of life; almost all developed tuberculosis and 72 infants died. It was subsequently discovered that the BCG administered there had been contaminated with a virulent strain that was being stored in the same incubator, which led to legal action against the manufacturers of the vaccine. Dr. R.G. Ferguson, working at the Fort Qu'Appelle Sanatorium in Saskatchewan, was among the pioneers in developing the practice of vaccination against tuberculosis. In 1928,
Inoculation theory are more likely to be inoculated by issue/advocacy messages. They use Mobil Oil's issue/advocacy campaign to test the hypotheses. The first hypothesis was supported by the data. There was a significant effect provided by inoculation. Additionally, H1 showed that issue/advocacy inoculation messages and attack messages vary in effectiveness depending on the content. The result was also noted in the results of H2, which were also supported by the results. Finally, the results indicated that political views play a role in the effectiveness of the campaigns. Thus, confirming H3, that conservatives are easier to inoculate. They also posed a research question