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18 August 2025 | Story Somila Nazo | Photo Supplied
Prof Martin Nyaga
Prof Martin Nyaga delivered a keynote on Africa’s scientific leadership in genomics and global health at the African Academy of Sciences Summit in Accra, Ghana.

Prof Martin Nyaga, one of Africa’s foremost experts in genomics and global health, recently delivered a powerful call for Africa’s leadership in global science at the African Academy of Sciences (AAS) Summit in Accra, Ghana. 

As Head of the Next Generation Sequencing (NGS) Unit at the University of the Free State (UFS) and Director of the WHO Collaborating Centre for Vaccine Preventable Diseases Surveillance and Pathogen Genomics, Prof Nyaga urged the scientific community to recognise Africa not just as a participant in global research, but as a driver of innovation and change. 

 

A summit of vision and collaboration 

Themed Unpacking the Pact for the Future: Imperatives for Advancing Scientific Cooperation with Africa, the summit took place from 2 – 4 July 2025. Hosted by the AAS in partnership with the African Union, the Government of Ghana, the University of Ghana, and other global partners, the summit brought together leading scientists, policymakers, and international stakeholders to discuss Africa’s role in shaping the future of global science, research and innovation. 

The event was attended by high-level dignitaries, including the President of Ghana, His Excellency John Dramani Mahama, and the former President of Nigeria, His Excellency Olusegun Obasanjo – a clear indication of strong political will to prioritise science, health and innovation across the continent. 

 

Advancing Africa’s voice in global health 

On 2 July 2025, Prof Nyaga delivered his keynote address, Advances, Opportunities and Priorities for Global Health in Africa. He highlighted Africa’s growing capabilities in genomics and public health, underscoring the opportunities for scientific leadership. 

Following his address, he joined an expert panel with representatives from Tanzania, Ghana and Nigeria to discuss strategies for advancing scientific cooperation in global health. His contributions focused on: strengthening research collaborations; building capacity within Africa; increasing African ownership in health innovations, and enhancing the translation of research into policy and practice. 

Prof Nyaga also used the platform to spotlight the work of the UFS Next Generation Sequencing (UFS-NGS) Unit. As a WHO Collaborating Centre, the unit plays a critical role in pathogen tracking, monitoring vaccine-preventable diseases, and supporting public health preparedness across Africa and beyond. 

 “This engagement provided an opportunity to highlight the impactful research from the UFS-NGS Unit – not only in academic publications, but in demonstrating tangible public health benefits to policy makers,” said Prof Nyaga.  “It elevated the University of the Free State’s standing as a leader in genomic science, while opening new opportunities for collaboration for South Africa and the continent. Our research priorities are increasingly shaping global health and innovation agendas.” 

 

From Ghana to the G20 

The outcomes of the summit will feed into a communiqué to be presented at the 2025 G20 Summit, to be hosted by South Africa. Prof Nyaga’s thought leadership ensures that Africa’s scientific voice - and South Africa’s research priorities - will be represented at one of the world’s most influential multilateral platforms. 

For more information about UFS partnerships in Africa, contact the Office for International Affairs at partnerships@ufs.ac.za.  

News Archive

Scientists discover a water reservoir beneath the Free State
2009-12-09

Dr Holger Sommer

The Mantle Research Group Bloemfontein (MRGB), under the leadership of Dr Holger Sommer, a senior lecturer in the Department of Geology at the University of the Free State (UFS), has discovered an enormous water reservoir 160 km beneath the Free State.

This discovery, according to Dr Sommer, is the first of its kind in South Africa after he had previously made a similar finding in Colorado, USA.

However, this water cannot be used for human consumption. “It is not frozen water; it is not molecular water; it is not fresh water; it is not salty water; it is OH – water which is sitting in the crystal lattice,” he said.

He said the reservoir was comparable in size to Lake Victoria in Tanzania.
The researchers collected eclogites from the Roberts Victor (Rovic) Mine close to the town of Boshof, south-west of the Free State, for their study.

“The Rovic eclogites are rocks which represent former oceanic crust transported into the earth’s interior by complex plate tectonic processes about 2.0 billion years ago,” explained Dr Sommer.

“These rocks were finally carried back to the earth’s surface by volcanic (kimberlite) eruptions around 130 million years ago. Eclogitic rocks are therefore a window into the Earth’s interior.”

The question from the beginning for all MRGB scientists was: Is there water inside these rocks in such depth, and if so, where is it located?

To answer this question, Dr Sommer and his research fellows separated single mineral grains from eclogite samples and prepared about 100 micrometer (0,1 mm) thick rock sections. Afterwards, specific particle accelerator (Synchrotron) measurements were carried out in the city of Karlsruhe in Germany.

“And indeed, the MRGB found water inside the studied rocks from the Roberts Victor Mine,” he said. “The water was located in defect structures in crystal lattices and along boundaries between single mineral grains.”

“The occurrence of water at such depth would give first evidence that all water of the oceans could be stored five to ten times in the earth’s mantle.”
The study was conducted about a year ago.
 

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za
4 December 2009

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