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 regarding the impact of gender on inoculation effectiveness in issue/advocacy campaigns. The conclusion was made that females are more likely to be inoculated with these types of campaigns. An additional observation made by Burgoon et. al (1995) was that the type of content used in these campaigns contributed to the campaigns success. The further the advertisement was from "direct self-benefit" the greater the inoculation effect was on the audience (Burgoon, et al., 1995). It took quite some time for inoculation theory to be applied to marketing, because of the many limitations (Lessne and Didow, 1987). Lessne and Didow (1987) reviewed