Podcast
Questions and Answers
What is the main mechanism by which HIV destroys CD4-bearing helper T lymphocytes?
What is the main mechanism by which HIV destroys CD4-bearing helper T lymphocytes?
- Enhancing the immune response of the lymphocytes
- Inducing apoptosis in the lymphocytes
- Directly attacking the cell membrane
- Substituting its own RNA and DNA for the cell's DNA (correct)
What happens when the CD4 count falls below 500 cells/mm3 in individuals with HIV infection?
What happens when the CD4 count falls below 500 cells/mm3 in individuals with HIV infection?
- Enhanced B-lymphocyte response
- Increased resistance to opportunistic infections
- Improved ability to remove malignant cells
- Difficulty in resisting opportunistic infections (correct)
How does HIV remain in the body even though there is no effective way to destroy it?
How does HIV remain in the body even though there is no effective way to destroy it?
- By replicating slowly (correct)
- By inducing autoimmune responses
- By escaping the immune system detection
- By hiding in bone marrow
Which factor makes it difficult for individuals with HIV infection to resist opportunistic infections such as fungal infections?
Which factor makes it difficult for individuals with HIV infection to resist opportunistic infections such as fungal infections?
How is HIV infection primarily spread according to the text?
How is HIV infection primarily spread according to the text?
Which age group usually progresses more rapidly from HIV transmission?
Which age group usually progresses more rapidly from HIV transmission?
What is the most common reason for childhood HIV infection in the United States?
What is the most common reason for childhood HIV infection in the United States?
What are the preliminary symptoms that a child may display during the preconversion time of HIV infection?
What are the preliminary symptoms that a child may display during the preconversion time of HIV infection?
How is HIV transmitted from mother to child when the mother does not receive treatment?
How is HIV transmitted from mother to child when the mother does not receive treatment?
What type of tests are used to detect HIV antigen and antibodies in children?
What type of tests are used to detect HIV antigen and antibodies in children?
