BCG vaccine nesting birds and rusted electrical conduits. The resulting closure of the plant for over two years resulting in shortages of bladder cancer and tuberculosis vaccines. On October 29, 2014 Health Canada gave the permission for Sanofi to resume production of BCG. The global supply situation was analyzed in 2017 and concluded that the global supply is sufficient to meet forecasted BCG vaccine demand but risks for shortages remain mainly due to supply concentration. A weakened strain of bovine tuberculosis bacillus, "Mycobacterium bovis" is specially subcultured in a culture medium, usually Middlebrook 7H9. Some BCG vaccines are freeze dried and become
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