
“Optimal Control and Modelling the Potential Impact of Botswana’s Policy Change on HIV/AIDS Treatment for Immigrants”
Country of Study
South Africa
Institution
University of Johannesburg
Expected Year of Completion
2027
Thematic Area
Gender, Rights and Governance
Education
Refilwe holds a Master’s degree in Pure and Applied Mathematics from Botswana International University of Science and Technology, which she completed in September 2023. She is currently pursuing a PhD in Applied Mathematics at the University of Johannesburg. Refilwe has successfully defended her research proposal and is expected to complete her PhD in September 2027. She also works as a part-time tutor at the University of Johannesburg.
Research Summary
Refilwe’s research focuses on evaluating the impact of including immigrants in Botswana’s HIV/AIDS treatment programs, a crucial public health issue given the exclusion of this population from antiretroviral therapy (ART). Despite ART access for citizens, the exclusion of immigrants, comprising around 7% of the population, has contributed to health disparities and ongoing HIV transmission. This study develops a mathematical model to analyze the dynamics of HIV transmission between local and immigrant populations, using numerical simulations to assess the policy’s impact. The research also applies optimal control strategies to identify cost-effective ways to reduce HIV transmission while promoting health equity. The findings aim to inform public health policy, support Botswana’s progress toward the 95-95-95 targets, and contribute to global HIV/AIDS control efforts.
Publications: