Nester's Microbiology: A Human Perspective
9th Edition
ISBN: 9781259709999
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 19, Problem 7SA
Draw representative epi curves (time versus number of people ill) depicting a propagated and a common-source epidemic.
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Chapter 19 Solutions
Nester's Microbiology: A Human Perspective
Ch. 19 - Compare the impact on a society of an endemic...Ch. 19 - What is the epidemiological significance of people...Ch. 19 - Prob. 3SACh. 19 -
4. List the main portals of exit from the human...Ch. 19 -
5. Name the most important control measure for...Ch. 19 - Prob. 6SACh. 19 - Draw representative epi curves (time versus number...Ch. 19 - Differentiate among a case-control study, a...Ch. 19 -
9. What information is available in the Weekly...Ch. 19 - How does the assignment of individuals to groups...
Ch. 19 - Describe the factors that contribute to the...Ch. 19 - Prob. 12SACh. 19 -
1. Which of the following is an example of a...Ch. 19 -
2. Which of the following would be the easiest to...Ch. 19 -
3. Which of the following methods of disease...Ch. 19 - Which of the following statements is false? a) A...Ch. 19 - Which of the following statements is false? a) A...Ch. 19 - Prob. 6MCCh. 19 - Prob. 7MCCh. 19 -
8. All of the following are thought to contribute...Ch. 19 - Prob. 9MCCh. 19 -
10. An endemic disease
a) is typically...Ch. 19 - Prob. 1ACh. 19 - Prob. 2ACh. 19 - Prob. 1CTCh. 19 - As shown in the graphs that follow, the proportion...
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- You are an analyst in the Florida Department of Health and you are tasked with using the SEIR model for computing the spread of various infectious diseases in Florida. What does the SEIR acronym stand for?arrow_forward5) Consider the following simulation result: 120 100 80 60 40 20 0 10 20 30 c) When does the epidemic peak? 40 50 Time 60 b) What proportion of the population gets infected? 70 a) What model do you think this simulation result is from? 80 90 d) Suppose 3 = 0.005 and y = 0.1. Calculate Ro for this model. 100 e) Can you stop the epidemic by adding more people to the population? If so, how many people would you need to add?arrow_forwardWhat is the difference between a common source and a propagated source epidemic outbreak? Which would you rather investigate and why? Provide an example of each.arrow_forward
- If a disease X has a duration of 15 years and a low incidence (5 per 100,000 person-years). If another disease Y has a duration of 5 years and a low and low incidence (5 per 100,000 person years). If we compare disease X and Disease Y in the same population, we would expect: a) Better cure b) lower prevalence c) higher prevalence d) Higher incidence e) shorter durationarrow_forwardAre there any similarities in the characteristics of Endemics and Pandemics? Note: Endemic not Epidemicarrow_forwardBelow are a list of virulence factors/ strategies paired with an example of an organism that utilizes them. How do each of the following strategies contribute to the virulence of the pathogen? Strategy - Causes the host to produce more receptors (Organism - Rhinovirus) Strategy - Produces gas as a product of fermentation (Organism - Clostridium perfringens) Strategy - Produces a capsule (organism - Klebsiella pneumonia) Strategy - Ability to move between adjacent cells (organism - Cytomegalovirus) Strategy - Ability to use pilus as a motility structure (organism - Pseudomonas aerogenosa)arrow_forward
- Differentiate the following Epidemic Patterns a. Common-Source b. Propagated c. Mixedarrow_forwardUsing specific examples describe the syndromic surveillance systems. Briefly explain how the syndromic surveillance systems are different from traditional surveillance approaches to epidemic detection.arrow_forwardAt the beginning of the COVID-19 Pandemic, the Department of Health used a graph to represent the prediction of the number of active cases, if no interventions were made. The vertical axis gives the number of active cases and the horizontal axis shows the number of days since the start of the pandemic. Pennsylvania residents were asked to quarantine to flatten the curve of the graph that rep- resented the number of active infections. Which of the following statements are true? Select all that apply. A Flattening the curve would represented a vertical compression of the graph of the data. B Flattening the curve would be a horizontal stretch of the graph of the data. When reading statistics reported in reputable news sources, it is beneficial to under- stand data measurement vocabulary. Uarrow_forward
- What is epidemiological data? How can such data assist public health professionals? What is the importance of epidemiology during the COVID 19 global pandemic?arrow_forwardWhat is major difference between an endemic disease and an epidemic?arrow_forwardGive two to three reasons why diagnostic tests like RT-qPCR are typically only performed during an outbreak and not to diagnose individual cases of norovirusarrow_forward
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