Topic6 - HLTH 101 Fall 2011 1 T OPIC 6: CHANGES IN HEALTH...

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HLTH 101 Fall 2011 1 TOPIC 6: CHANGES IN HEALTH THROUGH EMERGING AND RE-EMERGING INFECTIOUS DISEASES 2: THE EPIDEMIOLOGY OF INFECTIOUS DISEASES In the previous section, we learned the basic biology of infectious diseases. However, simply knowing the basic biology often does not help us to predict or understand the way in which infectious agents can lead to diseases in human, or how those diseases can become epidemics. In this section, we’ll begin by reviewing the set of criteria that were created by Robert Koch over 100 years ago to establish the causal relationship between specific microbes and specific diseases. Then we will establish a classification system for infectious diseases. Finally, we will study what are termed the “cycles of infectious diseases”: the various ways in which microbes co-exist with their environments. We’ll see that there are a number of factors determining the way in which microbes interact with humans. In a future section of this course, we’ll examine the ways in which we intervene to reduce the risk of infection by these microbes: as you work through this section, think about the importance of what you are learning to the understanding of infectious disease prevention and containment. RECOMMENDED READINGS: The material in this topic can be further researched via the sources provided in the previous topic. Again, you should access these sites and then look for specific topics using the links or the search engine provided on each site. 1. Medical Microbiology (4 th Ed.) Samuel Baron, Ed. http://www.ncbi.nlm.nih.gov/books/bv.fcgi?call=bv.View. .ShowTOC 2. The Public Health Agency of Canada http://www.phac-aspc.gc.ca/index-eng.php
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HLTH 101 Fall 2011 2 3. World Health Organization http://www.who.int/en/ 4. Centers for Disease Control and Prevention http://www.cdc.gov/index.htm LECTURE NOTES: 1/ THE EPIDEMIOLOGY OF INFECTIOUS DISEASES i. Attributing Causality of Infectious Diseases — historically, it was very difficult to attribute a particular disease to infection with a particular agent — late 1800
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Topic6 - HLTH 101 Fall 2011 1 T OPIC 6: CHANGES IN HEALTH...

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