The disease has always been a very dynamic and unpredictable character. Every time we humans think we have solved the mystery behind the disease, a new problem always arises. Before we can fully understand the disease, we must ask: what makes it so dynamic? The answer to this question is very simple; it's us. Since the beginning of time we have evolved as a species becoming better and more genetically adapted to our environments. While we were busy becoming all we can be, the disease did the same. Diseases evolve in our bodies just as we evolve in the environment. To better see how disease dynamics are affected, we need to see how social structure has changed the environment for disease. One of the greatest changes in human history was the transition from hunting and gathering to an agriculture-based system. This major paradigm shift meant that humans began to live closer to their animal counterparts. By living closer to animals, humans have effectively introduced to themselves a new method by which diseases can jump between species. With the agriculture-based system came a larger population living in more densely populated environments, further facilitating the spread of disease. The invention of a new type of society allowed the disease to become the disease we know today. Larry Kramer is an activist who understands that the dynamics of disease can be better understood as a society. Kramer alludes to the fact that because AIDS was initially seen as a gay disease, no one paid much attention to AIDS. He also said that the US government had $8 million available for AIDS research, but that they would release the funds. However, when the Tylenol scare was triggered, the government allocated $10 million for... half of the paper... the pandemic and the fall of the great Indian empires." Biological Consequences of European Expansion: 1450-1800. Ed. Kenneth F. Kiple.: Ashgate [ua, 1997. Print.Diamond, Jared M. “Leathal Gift of Livestock.” Print.Gutterman, Steve e Gleb Bryanski “Russia bans EU vegetables due to E.coli, EU protests | Reuters." Business and financial news, latest US and international news | Reuters.com. Reuters, 02 June 2011. Web. 09 June 2011. .Hitler, Adolf. Mein Kampf: Zwei Bände in Einem Band. Vol. 1. Fund of the Hill, 1938. Print. Mirsky, Jonathan. “How the Chinese Spread SARS.” Print.Proctor, Robert Racial Hygiene: Medicine under the Nazis Cambridge, MA: Harvard UP, 1988. Print.