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25 June 2025 | Story Dr Nitha Ramnath | Photo Lunga Luthuli
Dr Omololu Aluko
Dr Omololu Aluko, Senior Lecturer in the Department of Biostatistics advances health research and collaboration during prestigious fellowship at Ghent University, Belgium.

Dr Omololu Aluko, Senior Lecturer in the Department of Biostatistics in the Faculty of Health Sciences at the University of the Free State (UFS), recently completed a prestigious short research stay at Ghent University in Belgium. The fellowship, hosted in April 2025, was awarded through the highly competitive Africa Platform of Ghent University Association (GAP) funding scheme, with additional support from the UFS International Office. 

A recognised expert in infectious disease modelling, particularly HIV/AIDS research in low-resource settings, Dr Aluko has devoted his academic career to using biostatistics to address pressing health challenges. His selection for this fellowship marks a significant achievement both for his individual research trajectory and for the broader ambitions of the Faculty of Health Sciences and the UFS.

 

Strategic steps towards international collaboration 

The opportunity for the fellowship was first announced in the UFS Digest Newsletter. Motivated by the potential for international collaboration, Dr Aluko began seeking a host at Ghent University whose interests aligned with his own. After several weeks of correspondence with various departments and researchers, a suitable academic collaborator agreed to host him. 

With a host confirmed, Dr Aluko submitted his application, which underwent a rigorous review and selection process. His proposal was shortlisted and ultimately approved. While Ghent University provided partial funding, supplementary financial support was secured through the UFS International Office. Dr Aluko credits the office’s assistance – especially the guidance of Mr Kagiso Ngake, Senior Officer: Partnerships – for helping him successfully secure the necessary resources. 

 

Advancing research in health data science  

During his time at Ghent University, Dr Aluko focused on the application of machine learning algorithms to address public health challenges – an increasingly important field within the Faculty of Health Sciences. His research demonstrated how advanced data analysis techniques can improve health outcomes and optimise treatment strategies, especially in resource-constrained settings. 

Beyond the immediate research achievements, the fellowship laid a foundation for long-term collaboration between the UFS and Ghent University. Key outcomes include: 

  • Opportunities for joint PhD supervision, allowing UFS students to conduct part of their research at Ghent University 
  • Prospects for publishing collaborative research in leading international A1-rated journals 
  • The identification of a promising young research collaborator, paving the way for future academic partnerships 
  • Plans to explore future staff exchange programmes, as new funding calls are announced 

     

A growing partnership in a new academic field 

Dr Annelies Verdoolaege, Coordinator for the Africa Platform at Ghent University, emphasised the broader vision behind the initiative:

“The purpose of these fellowships is to foster structural academic collaboration between Ghent University and partners in Africa. We offer a dedicated amount of seed funding to support short-term mobility, with the aim of building long-term partnerships – through student exchange, joint PhDs, joint funding proposals, and collaborative research publications. 

The UFS is a long-standing partner of Ghent University, especially in Education, Linguistics, and Agriculture. We are delighted that this fellowship has taken place in the field of Data Analysis and Mathematical Modelling - a scientific domain still to be fully developed between our institutions.” 

 

Enhancing UFS’ global research impact 

Dr Aluko’s successful fellowship reflects the high calibre of researchers at the UFS and illustrates the importance of international academic mobility. By securing this competitive opportunity, Dr Aluko not only advanced his own work but also strengthened the UFS’ global research footprint - opening new collaborative avenues and reinforcing the university's growing reputation in health sciences and data-driven research. 

The UFS expresses its sincere gratitude to the Africa Platform of Ghent University and the UFS International Office for their critical support in enabling this milestone. Partnerships such as this are key to fulfilling the UFS’ mission of producing world-class research and fostering meaningful global engagement. 

News Archive

Harvard couple to present lectures on Biostatistics and Mathematics at the UFS
2015-12-07


Professor Donald Rubin

Prof Donald Rubin (John L. Loeb Professor of Statistics at Harvard University) and Elizabeth Zell (MStat - mathematical statistician in the Division of Bacterial Diseases) will visit the University of the Free State (UFS) where they will present lectures on their respective work.

Over his prestigious academic career, Prof Don Rubin’s 400 publications and 13 books have earned him around 180 000 citations at an h-index of 113. He is one of the most cited statisticians/mathematicians/economists/psychologists in the world over the last 10 -15 years. He has supervised 35 PhD candidates as sole-supervisor, 17 more as co-supervisor, with a further eight in the pipeline.

Prof Rubin who will meet with UFS academics in the Department of Mathematics and Actuarial Sciences will also deliver a lecture: Rerandomisation to improve covariate balance in experiments.

Randomised experiments are the “gold standard” for estimating causal effects, yet in practice, chance imbalances often exist in covariate distributions between treatment groups. If covariate data are available before units are exposed to treatments, these chance imbalances can be mitigated by first checking covariate balance before the physical experiment takes place. Provided a precise definition of imbalance has been specified in advance, unbalanced randomisations can be discarded, followed by a rerandomisation. This process can continue until a randomisation yielding balance according to the definition is achieved. By improving covariate balance, rerandomisation provides more precise and trustworthy estimates of treatment effects.

Prof Rubin received an honorary professorship from the Faculty of Natural and Agricultural Sciences at the UFS.


Elizabeth Zell

The lecture will take place on:
Date: Tuesday 8 December 2015
Time: 16:00
Venue: Albert Wessels Auditorium, Bloemfontein Campus

Zell earned her Master’s degree in Statistics at North Carolina State University, and for more than two decades, was an active bio-statistical researcher in various offices of the Centers for Disease Control (CDC). Since 2013, she has been the Principal Statistician and President of Stat-Epi Associates, Inc. Her 150+ publications have earned her 14 500 citations at an h-index of over 50. She is a Fellow of the American Statistical Association, and, in 2010, she received the Statistics Section Government Award for outstanding contributions to statistics and public health by the American Public Health Association. During her career at the CDC, she earned more than 20 CDC research awards and honours.

She will deliver two lectures at the UFS. The first is entitled A Potential Outcomes Approach to Documenting the Public Health Impact of the Introduction of PCV13 for the Prevention of Invasive Pneumococcal Disease. The topic of her second lecture is: Assessing the Effectiveness of Intrapartum Antibiotic Prophylaxis for Prevention of Early-Onset Group B Streptococcus Disease through Propensity Score Design

Elizabeth’s lectures will take place on:
Date: Wednesday 9 December 2015
Time: 10:45 and 13:00
Venue: West Block 111, Bloemfontein Campus

For more information, please contact Dr Michael von Maltitz at VMaltitzMJ@ufs.ac.za.

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