Medical geneticists and public health experts are calling on African governments and research institutions to strengthen ethical safeguards, protect genetic information and invest in local scientific capacity as countries across the continent expand national genome projects.
Experts warn that DNA sequencing alone will not deliver meaningful healthcare benefits unless African countries establish clear data governance systems, obtain informed consent from participants and develop the infrastructure needed to analyse genetic information and translate discoveries into medical practice.
Africa holds the world’s greatest human genetic diversity, yet its populations remain significantly underrepresented in global genomic research. Current estimates indicate that people of African origin account for only about 0.15 percent of participants in genome-wide association studies, which investigate relationships between genetic variations and diseases.
This imbalance has created major gaps in medical knowledge, limiting the accuracy of genetic testing and making it more difficult for healthcare professionals to interpret genetic findings in patients of African ancestry.
The consequences can be serious. Some genetic variations previously classified as causes of severe inherited heart conditions in people of African descent have subsequently been found to be harmless. Experts say access to larger and more representative African genomic datasets has helped researchers correct such misclassifications, highlighting the importance of improving population representation in medical studies.
Several African countries are now developing national genome initiatives to address these scientific gaps and strengthen healthcare research.
Tunisia plans to sequence the genomes of healthy individuals and patients with clinical conditions to help distinguish harmless genetic variations from those associated with disease. Egypt is pursuing large-scale genomic research to investigate common and rare diseases within its population.
Senegal is prioritizing inclusive research by seeking representation from 31 ethnolinguistic groups across all 14 administrative regions. Meanwhile, Tanzania, Kenya and South Africa are advancing early-stage national initiatives and foundational genomic studies based on their respective health priorities.
In a recent paper examining these national initiatives, molecular geneticist Dr. Mohamed Zahir Alimohamed of Tanzania’s Muhimbili University of Health and Allied Sciences and co-authors from several African countries emphasized that sequencing is only the beginning of a successful genomics programme.
They warned that countries would gain limited benefits from sequencing thousands of genomes without the ability to analyse the resulting information, interpret findings accurately and incorporate useful discoveries into healthcare systems.
Experts identify responsible data governance as a central priority. Genetic information is highly sensitive, and national projects need transparent rules governing how samples and data are collected, stored, shared and used over time. Participants must understand the purpose of research and how their information may be accessed by domestic and international institutions.
Community engagement is equally important. Researchers are being encouraged to involve local populations in designing genomic programmes, ensuring that communities understand the objectives of research and the potential benefits for their health systems.
Experts also stress the importance of data sovereignty, arguing that African countries should maintain meaningful control over genomic information generated from their populations while continuing to benefit from international scientific cooperation. Such safeguards could help prevent research practices in which African populations contribute data without receiving adequate scientific or medical benefits.
Long-term investment in human resources and infrastructure is another major requirement. Governments must allocate funding not only for DNA sequencing equipment but also for computing facilities, bioinformatics specialists, genetic researchers and healthcare professionals capable of applying discoveries in clinical settings.
The challenge is particularly significant for health systems already dealing with infectious diseases and rising cases of cardiovascular and other noncommunicable conditions. Experts argue that genomics should complement existing health priorities rather than compete with essential public health services.
They recommend that countries begin with manageable, locally relevant research projects instead of immediately pursuing expensive, large-scale datasets. Regional collaboration, including through the Human Heredity and Health in Africa initiative, could help countries share expertise, strengthen research networks and use limited resources more effectively.
Ultimately, experts say the success of Africa’s genomic programmes should not be measured simply by the number of genomes sequenced. Their real value will depend on whether research improves medical diagnosis, helps families understand inherited diseases, supports more effective drug prescriptions and strengthens African scientific institutions.
For the continent, responsible genomic research offers an opportunity to address longstanding inequalities in global medicine. Achieving that goal, however, will require governments to place ethical governance, public trust, local ownership and practical healthcare benefits at the centre of their national genome strategies.
