Microbiology and Immunology 2500A/B Lecture Notes - Lecture 1: Diabetes Mellitus Type 1, Lyme Disease, Infection
10 Sep 2018
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Document Summary
Immune system has to decide if something is a threat by using immune cells and proteins. 2 kinds of threats: external and internal threats. A disease in which your cells attack the other cells in its own body. Their immune cells attack and destroy their insulin producing cells. There is a positive correlation between communicable disease deaths and the wealth of your country. In richer countries only 1 of the top 10 deaths are from communicable diseases whereas from poorer countries about 5 out of 10. Portal of entry --> susceptible host --> back to infectious agent. Grandparents, children, people with compromised immune systems are all naturally more susceptible to infectious diseases. Disease is always present in a population within a region (ex. A rapid increase in cases higher than expected in a population within a region. (ex. An epidemic that becomes widespread over several regions, countries or continents (ex. Immunity acquired from another person via transfer of antibodies.
