HIV Epidemiology and Care Strategies
Summary
The global HIV epidemic remains a major public health challenge, with uneven progress across regions and populations. Although new infections have declined overall in recent decades, concentrated epidemics persist among key populations—such as men who have sex with men, people who inject drugs, sex workers and marginalised migrants. Epidemiological surveillance highlights disparities in testing coverage, linkage to care and treatment outcomes. Effective care strategies centre on a comprehensive continuum encompassing timely diagnosis, rapid initiation of antiretroviral therapy (ART), sustained retention in care and achievement of durable viral suppression. Implementation of differentiated service delivery models, community-based testing and peer-led outreach has improved access for underserved groups. Progress towards international targets (such as the UNAIDS 95-95-95 goals) depends on addressing social and structural determinants—including stigma, legal barriers and economic inequities—that undermine prevention and treatment uptake. Innovations in long-acting formulations, decentralised service platforms and digital adherence support are refining the clinical toolkit. A cohesive response demands integration of epidemiological insights with scalable care pathways, underpinned by robust monitoring systems and health workforce capacity strengthening.
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HIV Epidemiology and Care Strategies publication trend
The graph below shows the total number of articles in hiv epidemiology and care strategies across all publications each year (not limited to Nature Index journals).
Technical terms
Epidemiology: The study of the distribution and determinants of health states in populations, guiding public health interventions.
Care continuum (cascade): The sequential stages of HIV care from diagnosis through treatment initiation to sustained viral suppression.
Antiretroviral therapy (ART): The combination of medicines used to suppress HIV replication and restore immune function.
Viral suppression: Reduction of HIV RNA in blood to undetectable levels, minimising disease progression and transmission risk.
Adherence: The extent to which a person’s medication-taking behaviour corresponds with prescribed treatment regimens.
Key populations: Groups at heightened risk of HIV infection due to behavioural, social or structural factors, often facing barriers to care.
References
- Vulnerability to HIV Infection Among International Immigrants in China: Cross-sectional Web-Based Survey. JMIR Public Health and Surveillance (2023).
- Factors influencing adherence to anti-retroviral therapy in amazonian indigenous people living with HIV/AIDS. BMC Public Health (2023).
- The HIV care cascade: Japanese perspectives. PLOS ONE (2017).
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