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Biology
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May 16, 2024
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Paige Rewerts
Names of other students you worked with to complete this assignment (if applicable): ______________________________________________________________________________
For your homework assignment, please read the section and answer the following questions in your own words.
If you don’t completely understand the concept being asked, that is okay. But for credit, you need to explain what you do understand and what you don’t understand regarding the concept/topic being asked.
Section 22.4
Section Learning Objectives
ď‚·
Describe how severe acute respiratory syndrome spreads
ď‚·
Use data to show that SARS was an emergent disease that had not been previously present in the human population.
ď‚·
Explain how disease outbreaks can occur in ecological systems and why a disease like SARS spreads so rapidly.
Please read Section 22.4 and then answer the following questions in your own words.
If you don’t completely understand the concept being asked, that is okay. But for credit, you need to explain what you do understand and what you don’t understand regarding the concept/topic being asked. 1.
What do the observations that many healthcare workers and family groups became infected suggest? What might be the mode of transmission of the coronavirus, or the way that SARS spreads?
The observations that many healthcare workers and family groups became infected suggest that SARS could possibly spread through the healthcare workers themselves, which could then be brought home to their families. The mode of transmission of the coronavirus, or the way SARS spreads could be from live animals.
2.
What do you think is the significance, if any, to the observation that the second known case of SARS was a chef who handled live animals from open air markets?
I don’t think that there is a significance to the observation that the second known case of SARS was a chef who handled live animals from open air markets, because during the SARS outbreak, patients went into hospitals more and infected the healthcare workers who then took the illness home to their families. Even though
the live animals may have been one mode of transmission for SARS, it was not the only one.
3.
Do the antibody results in Table 22.9 support the conclusion that the outbreaks were caused by the SARS coronavirus?
The results in Table 22.9 do support the conclusion that the outbreaks were caused by the SARS coronavirus because it showed that the outbreaks were caused by the newly emerging viral pathogen.
4.
How do the data in Table 22.9 indicate that SARS is in emerging disease?
The data in Table 22.9 indicates that SARS is an emerging disease because out of the 55 patients, 41 were known to have contact with SARS, but they all were shown to have antibodies against the SARS coronavirus.
5.
What do the data in Table 22.10 tell us about the possible connection between animals and the virus?
The data in Table 22.10 tells us that the possible connection between animals and the virus is wild animal traders and butchers.
6.
What can you conclude from the evolutionary tree in Figure 22.22?
I can conclude from the evolutionary tree in Figure 22.22 that the differences among the viruses isolated from animals and humans
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