BCG vaccine 400 per 100,000 in that higher risk context). The age of the person and the frequency with which BCG is given has always varied from country to country. BCG is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, "Mycobacterium bovis", that has lost its ability to cause disease in humans. Because the living bacilli evolve to make the best use of available nutrients, they become less well-adapted to human blood and can no longer induce disease when introduced into a human host. Still, they are similar enough to their wild ancestors to provide some degree of
Inoculation theory to initially describe his theory. Unsurprisingly, inoculation strategies can be most effective when combined with health issues. Inoculation theory research, as applied to advertising and marketing, are primarily focused on promoting healthy lifestyles with the help of a product or for a specific company's goal. Shortly after McGuire published his development on inoculation theory, Szybillo and Heslin (1973) applied the concepts that McGuire used in the health industry to advertising and marketing campaigns. They sought to provide answers for advertisers marketing a controversial product or topic: if an advertiser knew the product or campaign would cause an attack, what would