Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Chapter 14, Problem 10R
Summary Introduction
To review:
The endemic and epidemic levels.
Introduction:
Influenza is an acute respiratory viral infection which is caused by the influenza virus. The common symptoms are high fever, runny nose, sore throat, muscle pains, headache, coughing, and tiredness. These symptoms typically begin two days after exposure to the virus and most last less than a week.
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What was the estimated mortality for the 1918 influenza pandemic?
~ 4,000
~ 400,000
~ 4,000,000
~ 40,000,000
None of the above
1) Analyse the following experimental set-up (illustrated in Figure 1)
a) A wild-type (WT) bacterial strain is sensitive to the antibiotic X (Ant X) (Figure
1A)
b) You have grown the WT strains in 3 independent liquid cultures (C1, C2 and
C3) for 24 hours (Figure 1B-Passage 1)
c) Following this initial growth, C1, C2 and C3 cultures are subcultured in 9
independent cultures and grown for 24 hours (Figure 1C Passage 2).
Subsequently, cultures are plated on Non-Selective (N/S) solid media and
media with Ant X (+ Ant X). The number of colonies grown in each plate are
shown (Figure 1C)
Use the above information to discuss:
a. the type of mutations (if any) that have been arisen during the experiment.
b. When did the mutations arise
Question continues on the next page
The graph below shows the number of COVID-19 cases reported each day in the US from Feb 1, 2020
to Feb 20, 2023 plus the 7-day average of cases. Which of the following statements is NOT true about
the graph?
800,000 cases
600,000
Emla
400,000
200,000
Feb. 2020
Sept.
7-day
average
Apr. 2021
Nov.
Jun. 2022
Jan, 2023
There have been fluctuations and surges in the number of cases during the past three years
None of the other four answers (All are true about the graph)
So far, the number of cases reported this winter is far lower than the number reported last
winter
It shows the prevalence (existing cases) of COVID-19 at one point in time
O It shows the incidence (number of newly reported cases) of COVID-19 over time during the
pandemic
Chapter 14 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 14 - Prob. 1RCh. 14 - Define symbiosis. Differentiate commensalism,...Ch. 14 - Prob. 3RCh. 14 - Prob. 4RCh. 14 - Distinguish symptoms from signs as signals of...Ch. 14 - How can a local infection become a systemic...Ch. 14 - Prob. 7RCh. 14 - Prob. 8RCh. 14 - Acquiring a closely related strain causes severe...Ch. 14 - Prob. 10R
Ch. 14 - Prob. 1MCQCh. 14 - All members of a group of ornithologists studying...Ch. 14 - Prob. 3MCQCh. 14 - Prob. 4MCQCh. 14 - Prob. 5MCQCh. 14 - Prob. 6MCQCh. 14 - Prob. 7MCQCh. 14 - Prob. 8MCQCh. 14 - Prob. 9MCQCh. 14 - Prob. 10MCQCh. 14 - Prob. 1ACh. 14 - Florence Nightingale gathered the following data...Ch. 14 - Name the method of transmission of each of the...Ch. 14 - Prob. 4ACh. 14 - Three days before a nurse developed...Ch. 14 - Three patients in a large hospital acquired...Ch. 14 - Prob. 3CAECh. 14 - Mycobacterium avium-intracellulare is prevalent in...
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