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 of tons in a single day. The Federal Trade Commission doesn't think that's significant." Hunt used this real-life message as an inoculation treatment in his research (Lessne and Didow, 1987). He used the corrective campaign by the FTC as the attack on the positive attitude toward Chevron. The results indicated that a supportive treatment offered less resistance than a refutational treatment. The other discovery was that when an inoculative treatment is received, but no attack is followed there is a drop in attitude. One of the major limitations in this study was that Hunt did not allow a time elapse