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An otherwise healthy student in your class was infected with Epstein Barr virus (EBV) (the virus that causes infectious mononucleosis) when she was a child, at which time she had merely experienced a mild sore throat and swollen lymph nodes in her neck. When she is exposed to EBV again later in life, she does not get sick or develop any symptoms of mononucleosis. Which of the following statements explains why your classmate does not exhibit symptoms of EBV infection? O Complement proteins effectively controlled the EBV during the second infection. none of these O She was infected with a weaker strain of EBV during her second exposure. Her innate immune response was better at recognizing the EBV antigen during the second infection. O Memory T cells recognized the virus upon the second exposure and activated cells that destroyed the virally infected cells.

An otherwise healthy student in your class was infected with Epstein Barr virus (EBV) (the virus that causes infectious mononucleosis) when she was a child, at which time she had merely experienced a mild sore throat and swollen lymph nodes in her neck. When she is exposed to EBV again later in life, she does not get sick or develop any symptoms of mononucleosis. Which of the following statements explains why your classmate does not exhibit symptoms of EBV infection? O Complement proteins effectively controlled the EBV during the second infection. none of these O She was infected with a weaker strain of EBV during her second exposure. Her innate immune response was better at recognizing the EBV antigen during the second infection. O Memory T cells recognized the virus upon the second exposure and activated cells that destroyed the virally infected cells.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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An otherwise healthy student in your class was infected with Epstein Barr virus (EBV) (the virus that causes infectious mononucleosis) when she was a child, at which time she had merely experienced a mild sore throat and swollen lymph nodes in her neck. When she is exposed to EBV again later in life, she does not get sick or develop any symptoms of mononucleosis. Which of the following statements explains why your classmate does not exhibit symptoms of EBV infection? O Complement proteins effectively controlled the EBV during the second infection. O none of these O She was infected with a weaker strain of EBV during her second exposure. O Her innate immune response was better at recognizing the EBV antigen during the second infection. Memory T cells recognized the virus upon the second exposure and activated cells that destroyed the virally infected cells.
Transcribed Image Text:An otherwise healthy student in your class was infected with Epstein Barr virus (EBV) (the virus that causes infectious mononucleosis) when she was a child, at which time she had merely experienced a mild sore throat and swollen lymph nodes in her neck. When she is exposed to EBV again later in life, she does not get sick or develop any symptoms of mononucleosis. Which of the following statements explains why your classmate does not exhibit symptoms of EBV infection? O Complement proteins effectively controlled the EBV during the second infection. O none of these O She was infected with a weaker strain of EBV during her second exposure. O Her innate immune response was better at recognizing the EBV antigen during the second infection. Memory T cells recognized the virus upon the second exposure and activated cells that destroyed the virally infected cells.
Fill in the blank: Vaccination offers protection against future exposure to pathogens because it O enhances the activity of macrophages O promotes inflammation O none of these stimulates the complement system O triggers clonal expansion of lymphocytes
Transcribed Image Text:Fill in the blank: Vaccination offers protection against future exposure to pathogens because it O enhances the activity of macrophages O promotes inflammation O none of these stimulates the complement system O triggers clonal expansion of lymphocytes
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