Extra Credit Quiz TWO

Extra Credit Quiz TWO - MCB 2000 MICROBIOLOGY Extra Credit...

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MCB 2000 MICROBIOLOGY Extra Credit Quiz TWO PUBLIC HEALTH AND THE PREVENTION OF DISEASE TABLE OF CONTENTS History of Epidemiology o John Snow Vocabulary of Epidemiology o Disease Reservoirs o Disease Transmission Direct Contact Fomites Vectors Carriers o Portals of Entry Nosocomial Infections Compromised Hosts o Patterns and Extent of Disease Endemic Epidemic Pandemic How Epidemiology is Done Breaking the Cycle of Infection o Emerging Diseases Summary of Epidemiology
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EPIDEMIOLOGY OBJECTIVES To understand the principles of epidemiology: To understand how infectious diseases spread. To understand the concept of disease reservoirs. To understand the public health management of diseases. HISTORY OF EPIDEMIOLOGY While the human race battles itself, fighting over ever more crowded turf and scarcer resources, the advantage moves to the microbes' court. They are our predators and they will be victorious if we, Homo sapiens, do not learn how to live in a rational global village that affords the microbes few opportunities. It's either that or we brace ourselves for the coming plague." --- Laurie Garrett , The Coming Plague, 1994 Our ancient ancestors recognized that diseases spread from one person to another. The idea that people with certain diseases are "unclean" is ancient, and is still with us (e.g. HIV+). These people, usually marked by some highly visible condition like leprosy or other skin condition, were (& they still are) shunned by their fellows. Lepers were often required to wear bells or to continually cry " UNCLEAN " in a loud voice so as to warn people of their presence; failure to follow these rules resulted in severe punishment or even death. During outbreaks of highly infectious diseases like the bubonic plague, smallpox and flu people fled in terror from the foci of the infections, which were often deemed "unclean". Of course this almost always had the effect of SPREADING infectious diseases further afield; desirable from the standpoint of the infectious agent, but not fun for the new victims. (Sci. Am. Feb. pg. 118, 1988) Even today disease is frequently attributed to "evil spirits, demons, witches & devils" or the "punishment of God". It may seem foolish to us living in this enlightened age (where the daily # horoscope is published in every newspaper), but considering that microbes were not discovered until the 1600s and not commonly known until the 20th century, how were people to explain diseases that struck without warning and seemingly killed at random? Does the idea of calling the HIV virus a "devil" really
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seem all that odd to you? After all millions of people today claim to have spoken to angels or to have been kidnapped by aliens. The
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Extra Credit Quiz TWO - MCB 2000 MICROBIOLOGY Extra Credit...

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