NR 553 Week 1 Global Health Challenges

Grace J.
September 2, 2025September 2, 2025
CU MSN, NR-553

Student Name

Chamberlain University

NR-553: Global Health

Prof. Name

Date

Week 1: Global Health Challenges

Over the past three decades, HIV/AIDS has remained one of the most significant global health challenges. It has not only impacted millions of individuals but has also consumed the largest proportion of development assistance for health worldwide. In 2011, there were an estimated 34.2 million people living with HIV, 2.5 million new infections, and 1.7 million AIDS-related deaths (WHO/UNAIDS/UNICEF, 2011).

The epidemic continues to disproportionately affect Sub-Saharan Africa, where in some countries, infection rates exceed 30% of the adult population (USAID Bureau of Global Health, 2010). Meanwhile, the Caribbean region ranks second globally in terms of HIV/AIDS prevalence, particularly among individuals aged 25 to 44 years (USAID Bureau of Global Health, 2010).

Factors Contributing to HIV Prevalence

The following factors have been identified as significant contributors to the persistence of HIV:

Factor	Explanation
High STI prevalence	STIs increase the biological risk of HIV transmission.
Limited access to STI care	Many individuals cannot obtain treatment, worsening spread.
Cultural barriers	Social stigma against condom use reduces prevention efforts.
Political instability	Wars and civil conflicts disrupt healthcare systems.
Gender inequality	Women’s low social status limits their ability to negotiate safe practices.
Literacy challenges	Low education rates hinder awareness and prevention.
Unsafe medical practices	Reuse of needles and unsterile practices spread infection.
Weak political commitment	Limited funding and prioritization of HIV response.

(Adapted from USAID Bureau of Global Health, 2010)

Access to Treatment

A persistent inequity in treatment access exists. People in high-income nations benefit from highly active antiretroviral therapy (HAART), often referred to as the “triple cocktail,” introduced in 1996 (Busby & Kapstein, 2016). In contrast, millions in low- and middle-income countries lack access to antiretroviral medicines (ARVs). This disparity contributes to the 5,700 daily AIDS-related deaths worldwide (USAID Bureau of Global Health, 2010).

The Need for Comprehensive Prevention

HIV/AIDS does not only threaten individual health but also affects families, communities, and national economies. While prevention programs exist, many are not tailored to the unique needs of local populations. Evidence shows that treating sexually transmitted infections reduces HIV risk, making STI management an essential component of HIV control strategies.

Integrated approaches that combine provider-initiated testing, counseling, and linkage to treatment are necessary to achieve universal access. Political commitment, resource allocation, and innovative prevention strategies are key to reducing the global burden of HIV/AIDS.

Response to Peer 1

You highlighted the role of economic conditions in shaping access to healthcare and the burden of disease, which is an important point. I would like to expand on this by emphasizing how environmental pollution also interacts with health inequalities.

Environmental pollution refers to the presence of harmful agents in the environment that may damage both ecosystems and human health (Briggs, 2003). This includes water contamination, poor sanitation, indoor and outdoor air pollution, radiation, and chemical exposures.

Pollution and Global Health

Type of Pollution	Health Risks
Water contamination	Diarrheal diseases, cholera, and typhoid.
Indoor air pollution	Respiratory infections and chronic obstructive pulmonary disease.
Outdoor air pollution	Cardiovascular diseases, asthma, and premature death.
Chemical exposure	Developmental delays, cancers, and neurological conditions.

According to Landrigan et al. (2017), 92% of deaths from pollution-related diseases occur in low- and middle-income countries, disproportionately affecting vulnerable groups, particularly children. Even minimal chemical exposure in early life can result in lifelong disabilities and reduced earning potential.

Environmental risks are also closely linked to climate change, which exacerbates air quality problems and increases vulnerability among already disadvantaged populations. To address these challenges, the United Nations Sustainable Development Goal (SDG) 3.9 emphasizes reducing deaths from hazardous environmental exposures by 2030 (United Nations, 2015).

NR 553 Week 1 Global Health Challenges

Transitioning to sustainable economies and implementing pollution control policies are essential for reducing health risks while improving equity in global health outcomes.

Response to Peer 2

You rightly pointed out how health inequities undermine opportunities for those in vulnerable conditions. A multisectoral approach involving governments, NGOs, academic institutions, and civil society is necessary to address these disparities.

Research shows that structural determinants—such as social, economic, and political exclusion—systematically reduce opportunities for certain groups, thereby worsening health inequalities. Effective interventions must therefore not only provide healthcare but also address the root causes of inequity.

The World Health Organization’s Health 2020 framework, introduced in 2012, serves as an important model (WHO/Europe, 2013). It emphasizes two goals:

Improving health for all and reducing inequalities, and
Strengthening participatory governance for health.

Example: European Healthy Cities Network (EHCN)

The EHCN, launched in 1987, has grown to include over 100 member cities and 1,500 cities in national networks across Europe (WHO/Europe, n.d.). This initiative promotes:

Cross-sector collaboration,
Policy integration at the local level, and
Public health advocacy for equity and sustainability.

The network has proven effective in changing the way local governments and communities address health, emphasizing inclusivity, sustainability, and evidence-based decision-making.

Such models demonstrate how intersectoral partnerships and community engagement are crucial in reducing inequities and improving health outcomes worldwide.

References

WHO/UNAIDS/UNICEF. (2011). Progress report 2011: Global HIV/AIDS response. http://www.who.int/hiv/pub/progress_report2011/summary_en.pdf?ua=1

Briggs, D. (2003). Environmental pollution and the global burden of disease. British Medical Bulletin, 68(1), 1–24. https://doi.org/10.1093/bmb/ldg019

Busby, J. W., & Kapstein, E. B. (2016). Framing global health as human rights: Learning from the case of HIV/AIDS. Global Health Governance, 10(3), 24–40.

Landrigan, P. J., Fuller, R., Acosta, N., Adeyi, O., Arnold, R., Basu, N., Bibi-Baldé, A., … Zhong, M. (2017). Pollution responsible for 16 percent of early deaths globally. ScienceDaily. https://www.sciencedaily.com/releases/2017/10/171020182513.htm

United Nations. (2015). Sustainable development goal 3. Ensure healthy lives and promote well-being for all at all ages. https://sustainabledevelopment.un.org/sdg3

USAID Bureau of Global Health. (2010). HIV/AIDS surveillance. https://www.globalhealthlearning.org/course/hiv-aids-surveillance