Opportunistic Infections in HIV/AIDS Management
Summary
Opportunistic infections (OIs) remain a principal challenge in the clinical management of HIV/AIDS, despite widespread availability of effective antiretroviral therapy (ART). These infections exploit the immunodeficiency characteristic of untreated or insufficiently treated patients, emerging chiefly when CD4+ T cell counts fall below critical thresholds. The most prevalent OIs include Mycobacterium tuberculosis, Pneumocystis pneumonia, candidiasis, cryptococcosis and cytomegalovirus disease. Geographic variation in pathogen prevalence underscores the need for region-specific surveillance and tailored prophylactic regimens. Key determinants of OI risk encompass low CD4+ T cell count, advanced WHO clinical stage, comorbid conditions such as diabetes and malnutrition, and gaps in adherence to ART or prophylaxis. Early initiation and sustained adherence to ART have markedly reduced OI incidence and related mortality, yet late diagnosis and barriers to care continue to drive high burdens in resource-limited settings. Advances in diagnostic modalities, including biomarker panels and machine learning algorithms, promise earlier detection and stratification of OI risk. Integrating predictive models with routine clinical assessment may enable personalised prophylactic strategies, optimise resource allocation and improve patient outcomes. A holistic approach combining prompt ART initiation, rigorous monitoring of immune status, prophylactic interventions and context-appropriate diagnostics is essential to further reduce the global impact of opportunistic infections in people living with HIV/AIDS.
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Opportunistic Infections in HIV/AIDS Management publication trend
The graph below shows the total number of articles in opportunistic infections in hiv/aids management across all publications each year (not limited to Nature Index journals).
Technical terms
Opportunistic infection (OI): An infection caused by pathogens that take advantage of a weakened immune system, often arising in HIV/AIDS when immune surveillance is compromised.
CD4+ T cell count: A laboratory measure of helper T lymphocytes in blood, serving as a key indicator of immune competence and risk stratification in HIV infection.
Antiretroviral therapy (ART): Combination drug regimens designed to suppress HIV replication, restore immune function and prevent the emergence of opportunistic infections.
Prophylaxis: Preventive medical treatment administered to avert the development of specific opportunistic infections in at-risk individuals.
References
- The spectrum of opportunistic infections and malignancies among women on antiretroviral therapy in Ethiopia. Emerging Microbes & Infections (2023).
- Opportunistic Infections among newly diagnosed HIV patients in the largest tertiary facility in Ghana. Annals of Global Health (2024).
- A Machine Learning Model for Diagnosing Opportunistic Infections in HIV Patients: Broad Applicability Across Infection Types. Journal of Cellular and Molecular Medicine (2025).
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