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PART 3: Detection Watch the third animation, Detection, which shows several ways to test whether someone has been infected by the SARS-CoV-2 virus. The animation discusses two types of tests used to determine whether someone has an active SARS- CoV-2 infection. The table below compares some aspects of these tests as of August 2020. Tests for presence of Accuracy Time to get results Test type RT-PCR test Antigen test Pieces of the virus's RNA genome Pieces of viral proteins (antigens) Few false negatives.* Test usually does not need to be repeated. More false negatives than the RT-PCR test. May need other tests to confirm negative results. One day to one week One hour or less *A false negative is when an active infection is not detected by the test. 10. Imagine you are planning to visit a family member who is a nursing home resident. The nursing home requires that all visitors test negative for an active SARS-CoV-2 infection no more than two weeks bef the visit. Which of the two tests shown above would you choose, or what other information would yo want to learn before choosing? Use evidence from the table to support your answer.

PART 3: Detection Watch the third animation, Detection, which shows several ways to test whether someone has been infected by the SARS-CoV-2 virus. The animation discusses two types of tests used to determine whether someone has an active SARS- CoV-2 infection. The table below compares some aspects of these tests as of August 2020. Tests for presence of Accuracy Time to get results Test type RT-PCR test Antigen test Pieces of the virus's RNA genome Pieces of viral proteins (antigens) Few false negatives.* Test usually does not need to be repeated. More false negatives than the RT-PCR test. May need other tests to confirm negative results. One day to one week One hour or less *A false negative is when an active infection is not detected by the test. 10. Imagine you are planning to visit a family member who is a nursing home resident. The nursing home requires that all visitors test negative for an active SARS-CoV-2 infection no more than two weeks bef the visit. Which of the two tests shown above would you choose, or what other information would yo want to learn before choosing? Use evidence from the table to support your answer.

Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter37: Immunity
Section: Chapter Questions
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PART 3: Detection Watch the third animation, Detection, which shows several ways to test whether someone has been infected by the SARS-CoV-2 virus. The animation discusses two types of tests used to determine whether someone has an active SARS- CoV-2 infection. The table below compares some aspects of these tests as of August 2020. Tests for presence of Accuracy Time to get results Test type RT-PCR test Antigen test Pieces of the virus's RNA genome Pieces of viral proteins (antigens) Few false negatives.* Test usually does not need to be repeated. More false negatives than the RT-PCR test. May need other tests to confirm negative results. One day to one week One hour or less *A false negative is when an active infection is not detected by the test. 10. Imagine you are planning to visit a family member who is a nursing home resident. The nursing home requires that all visitors test negative for an active SARS-CoV-2 infection no more than two weeks before the visit. Which of the two tests shown above would you choose, or what other information would you want to learn before choosing? Use evidence from the table to support your answer. 11. In addition to the tests described above, people can also get tested for the presence of SARS-CoV-2 antibodies. Explain how an individual could test negative for an active SARS-CoV-2 infection and positive for SARS-CoV-2 antibodies.
Transcribed Image Text:PART 3: Detection Watch the third animation, Detection, which shows several ways to test whether someone has been infected by the SARS-CoV-2 virus. The animation discusses two types of tests used to determine whether someone has an active SARS- CoV-2 infection. The table below compares some aspects of these tests as of August 2020. Tests for presence of Accuracy Time to get results Test type RT-PCR test Antigen test Pieces of the virus's RNA genome Pieces of viral proteins (antigens) Few false negatives.* Test usually does not need to be repeated. More false negatives than the RT-PCR test. May need other tests to confirm negative results. One day to one week One hour or less *A false negative is when an active infection is not detected by the test. 10. Imagine you are planning to visit a family member who is a nursing home resident. The nursing home requires that all visitors test negative for an active SARS-CoV-2 infection no more than two weeks before the visit. Which of the two tests shown above would you choose, or what other information would you want to learn before choosing? Use evidence from the table to support your answer. 11. In addition to the tests described above, people can also get tested for the presence of SARS-CoV-2 antibodies. Explain how an individual could test negative for an active SARS-CoV-2 infection and positive for SARS-CoV-2 antibodies.
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