Question 42According to the SIR model of infectious disease transmission that incorporatesimmunity, what does the term calculated as (S x I x b) represent?O number of individuals susceptible to the pathogenO rate of infection between susceptible and infected individualsO probability of contact between susceptible and infected individualsO rate of recovery of infected individuals◄ PreviousNext▸

S x I x b in the SIR model of infectious disease transmission represents the rate of infection…

Answered: Question 42 According to the SIR model…

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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Question 5 Save Answer Several months after the initial vaccination schedule to achieve COVID immunity, the protection against COVID diminishes, and "boosters" are recommended to re-establish full immune protection. What is the part of the immune response that naturally wanes or diminishes during that time so that boosters are needed? a. Levels of circulating antibodies such as lgG decrease because of their usual half-life in the blood. O b. The antigen processing dendrites stop working because they get tired of doing all that hard work and not getting proper recognition and credit. c. Natural killer cells lose their ability to recognize and kill virus-infected cells. d. The memory B-cells lose the ability to remember the SARS-CoV-2 antigens.
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Question 1 What is the role of gp 120 for HIV? O Hydrolysis of mucous for entry into respiratory system cells O Gp 120 is not associated with HIV. O Attachment to CD4 receptors in target cell Uncoating of the virus once it enters into the cell. Question 2 Influenza is what type of virus? dsDNA SSDNA dsRNA
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Class I major histocompatibility complex molecules are found on O all anucleated cells. O antigen-presenting O all nucleated O None of the choices are correct. QUESTION 67 Important characteristics of antimicrobic drugs include O readily delivered to the site of infection. O high toxicity against microbial cells. O remains active in body tissues and fluids. do not cause serious side effects in humans. O All of these choices are correct. QUESTION 68 Antibodies O can bind to an immunogen. O are part of the nonspecific immune response. O can target the immunogen for destruction. O both can bind to an immunogen and can target the immunogen for destruction. O both can bind to an immunogen and are part of the nonspecific immune response.

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