Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 37.7, Problem 1TC
Summary Introduction
To explain: Whether increase means that measles was getting more infectious or might there be any another reason.
Introduction: Measles is an infectious disease that is transmitted by the transfer of affected respiratory droplets through the air. The cases of this disease increase in late winter and early spring seasons.
Summary Introduction
To suggest: A reason why the number of measles cases did not immediately decline in 1964, although the vaccines were licensed in 1963.
Summary Introduction
To determine: The additional data required to test the hypothesis.
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The Ro of Ebola has been estimated to be somewhere between 1.5 and 2. See graphic below.
The number of people that one sick person will infect (on average) is called R₂.
Here are the maximum R, values for a few viruses.
more contagious
R₂-
Hepatitis C (2) Ebola (2)
HIV (4)
SARS (4)
Mumps (10)
Measles (18)
****
What percentage of the population would have to be vaccinated to stop the spread of Ebola if it were
to be introduced to a new continent?
a. 33-50%
O b. >99%
C. 75-99%
d. 66-75%
e. <33%
This article highlights a young doctor at Elmhurst Hospital during the beginning of Covid-19 pandemic. Dr. Zikry is quoted as saying: “It’s become very clear to me what a socioeconomic disease this is...”. In addition, the textbook discusses the personal variables and socioeconomic status (SES) that are used to find patterns in disease (pp.112-118).
What do you think Dr. Zikry meant by referring to the SES of his patients? Why was it important to find a pattern of personal variables and SES among the of victims of Covid-19 at the beginning of the pandemic?
Just last week the Energy Department now seems pretty confident that the coronavirus came from a lab leak:
https://www.nytimes.com/2023/02/26/us/politics/china-lab-leak-coronavirus-pandemic.html
The textbook discusses how the environment is part of the epidemiologic triangle. What is the epidemiologic triangle? (Figure 10-2, p.210). Why does it matter where this coronavirus started? Do you have any theories about how the virus was transmitted to humans?
Chapter 37 Solutions
Biology
Ch. 37.1 - compare and contrast the terms microbe and...Ch. 37.1 - Prob. 2CYLCh. 37.2 - Prob. 1TCCh. 37.2 - If phagocytes kill most species of bacteria that...Ch. 37.2 - describe the external barriers to Infection,...Ch. 37.2 - Prob. 2CYLCh. 37.3 - Prob. 1CYLCh. 37.3 - Prob. 2CYLCh. 37.4 - Prob. 1TCCh. 37.4 - Prob. 1CYL
Ch. 37.4 - Prob. 2CYLCh. 37.4 - Prob. 3CYLCh. 37.5 - Prob. 1CYLCh. 37.5 - Prob. 2CYLCh. 37.6 - Prob. 1CYLCh. 37.6 - Prob. 2CYLCh. 37.7 - Prob. 1HYEWCh. 37.7 - Prob. 1TCCh. 37.7 - explain how antibiotics, antiviral drugs, and...Ch. 37.7 - Prob. 2CYLCh. 37.8 - What might be the evolutionary advantage of...Ch. 37.8 - Prob. 1CYLCh. 37.9 - Prob. 1CYLCh. 37.9 - describe current medical treatments against...Ch. 37.9 - Prob. 1CTCh. 37 - Prob. 1MCCh. 37 - Prob. 2MCCh. 37 - Molecules that label your cells as self are a....Ch. 37 - Prob. 4MCCh. 37 - The immune system usually does not attack your...Ch. 37 - External defenses against microbial invasion...Ch. 37 - Prob. 2FIBCh. 37 - Prob. 3FIBCh. 37 - Prob. 4FIBCh. 37 - Prob. 5FIBCh. 37 - Prob. 6FIBCh. 37 - Prob. 1RQCh. 37 - Prob. 2RQCh. 37 - Describe humoral immunity and cell-mediated...Ch. 37 - Prob. 4RQCh. 37 - Prob. 5RQCh. 37 - Prob. 6RQCh. 37 - Prob. 7RQCh. 37 - What are memory cells? How do they contribute to...Ch. 37 - Prob. 9RQCh. 37 - Prob. 10RQCh. 37 - Prob. 11RQCh. 37 - Prob. 12RQCh. 37 - Prob. 13RQCh. 37 - Why is it essential that antibodies and T-cell...Ch. 37 - Prob. 2AC
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