Midterm 1 Study Guide Questions

Midterm 1 Study Guide Questions

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Unformatted text preview: ther hand, is when an infection starts to show signs or symptoms. What is the definition of a non- communicable infectious disease? Give an example. A non- communicable infectious disease arises from outside of hosts or from opportunistic pathogens. An example would be tetanus, which is spread by wound infections of soil bacterium. Name at least three mechanisms by which a communicable disease can be transmitted from one person to another. Three mechanisms by which a communicable disease can be transmitted from one person to another are 1) human to human direct contact (hand shaking), 2) animal to human via an animal bite (rabies) or 3) via a vector (a mosquito spreading West Nile Virus). Lecture 5 The likelihood of HIV being transmitted is much higher for some body fluids and secretions than for others. Name at least one bodily fluid that is highly likely to contain HIV and one that is not. One bodily fluid that is highly likely to contain HIV is semen. A bodily fluid that is not likely to contain HIV is perspiration/sweat. Sneezing is an effective way to transmit the flu virus. Why are sneezes much more effective in the winter season? Sneezing is more effective in winter because droplets remain airborne longer in dry air. In epidemiology, R0 is known as the Basic Reproduction Number. What does the value of R0 say about the probability of an infectious disease taking on epidemic proportions? If R0 is less than zero, then the infection will not spread. If R0 is...
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This document was uploaded on 03/21/2014.

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