Multiple Choice
Which of the following statements is true about the treatment for HIV?
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21. The Immune System
Introduction to the Immune System
Multiple Choice
Which of the following components of the innate immune system contributes to the virulence of a pathogen?
A
Capsule formation
B
Phagocytosis
C
Fever
D
Inflammation
Verified step by step guidance1
Understand the role of the innate immune system: The innate immune system is the body's first line of defense against pathogens. It includes physical barriers, immune cells, and various proteins that identify and eliminate pathogens.
Define virulence: Virulence refers to the degree of pathogenicity or the ability of a pathogen to cause disease. Factors that contribute to virulence help the pathogen evade the host's immune system or enhance its ability to cause disease.
Examine each option: Consider how each component listed (capsule formation, phagocytosis, fever, inflammation) interacts with the immune system and whether it aids the pathogen or the host.
Capsule formation: This is a feature of some bacteria where they produce a protective layer around themselves. This capsule can help the bacteria evade phagocytosis by immune cells, thus contributing to the pathogen's virulence.
Evaluate the other options: Phagocytosis, fever, and inflammation are mechanisms of the host's immune response aimed at eliminating pathogens. They do not contribute to the virulence of a pathogen but rather help in defending against it.
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