Various theories of disease causation that date back from ancient times to the present has lead to current disease and strategies. Scientific and medical breakthroughs have also affected the current understanding of disease causation and disease prevention measures.
Describe the major scientific breakthroughs. In your description, discuss the affect that these breakthroughs have had on the evolution of disease causation theories. Include the effect(s) of these breakthroughs on the basic mechanisms of disease causation and health promotion measures used throughout and today. These web sites were given as a reference: http://www.ph.ucla.edu/epi/snow/firstdiscoveredcholera.html
2) Various predisposing factors, such as age, sex, the environment, lifestyle, and heredity can cause one person (or population) to be more susceptible to a particular disease than another person (or population).
Consider the chain of infection, modes of disease transmission, and host susceptibility to disease. Describe the effects that a particular disease has on aging, the environment, lifestyle, and heredity has on the susceptibility to common chronic diseases. In your description, include an explanation detailing why some people (or populations) are more susceptible to certain diseases than other people (or populations).