Clinical Correlates (HIV/AIDS, Autoimmune Disorders)
Start with the big picture
HIV pathogenesis is organized around viral entry into CD4⁺ T-helper cells, progressive cell depletion, and the relationship between viral set point and disease progression. The topic also introduces AIDS diagnostic criteria, screening and confirmatory testing, antiretroviral therapy, prevention of opportunistic infections and vertical transmission, and IRIS. The autoimmune section contrasts central and peripheral tolerance failures, genetic susceptibility, and systemic versus organ-specific disease. Examples include SLE and rheumatoid arthritis, with their associated antibody and complement findings, alongside hypersensitivity mechanisms and sex-related influences. Together, these clinical correlates show how immune-system changes inform diagnosis and management.
What you'll learn
- Describe HIV entry into CD4⁺ T-helper cells and its role in progressive cellular depletion.
- Identify the stated criteria for AIDS diagnosis and outline HIV testing approaches.
- Summarize key elements of HIV treatment, infection prophylaxis, and transmission prevention.
- Distinguish systemic from organ-specific autoimmune disorders and relate examples to immune mechanisms.
- Recognize selected diagnostic features of SLE and rheumatoid arthritis.
Continue your study
Work through the complete notes and reinforce the topic with the study tools available in the full lesson.
