What if the way we understand shape, space, and structure could help us see disease differently?
In this episode of Paul Talks Science, I sit down with South African mathematician Dr. Cerene Rathilal to explore topology, a branch of mathematics that asks what stays the same even when things are stretched, twisted, or transformed, and why those ideas now matter far beyond the chalkboard.
Cerene traces her journey into mathematics, from a childhood shaped by curiosity to the moment she realised that being good at maths was not the same as being told you could become a mathematician. We talk about the quiet ways society steers talented students away from pure mathematics, and what it means to choose a path that is not always visible or celebrated.
The conversation moves from theory to impact, as Cerene explains how topological data analysis is being explored in areas such as breast cancer diagnosis, helping researchers look at medical images and data in entirely new ways. We also discuss why Africa has a growing role to play in advanced mathematical research, and how global scientific spaces can create mobility, collaboration, and confidence for African scholars.
Beyond the mathematics, this episode is about representation, mentorship, and making space. Cerene shares why she founded a programme to support girls pursuing STEM careers in South Africa, and what it takes to turn personal experience into collective opportunity.
This is a conversation about mathematics as a way of seeing, science as a human endeavour, and why abstract ideas often shape the real world more than we realise.
In this episode, we follow the journey of Hannah, a young Ghanaian researcher whose relationship with mathematics completely transformed once she discovered where the equations finally led. From early confusion in abstract university courses to finding clarity through disease modelling, Hannah shares the moments, mentors, and opportunities that reshaped her understanding of what math can do — and who it is for.
She talks openly about the gaps in math education across Africa, the power of exposure, and the role supportive supervisors played in helping her find her footing in biomedical data science. We explore how mathematical skills are opening new frontiers in health, AI, and problem-solving on the continent, and why she believes Africa’s unique challenges also represent its greatest opportunities.
This is a conversation about seeing math differently, building confidence as a young researcher, and imagining a future where African mathematicians shape solutions for their own communities — and beyond.
📌 Host: Paul Adepoju
👤 Guest: Prof. Moji Adeyeye – Director-General of NAFDAC (Nigeria’s National Agency for Food and Drug Administration & Control)
In this episode of Paul Talks Science, I sit down with Prof. Moji Adeyeye to explore her remarkable journey from practicing pharmacist to academic, regulator and advocate, and how she’s helping transform Nigeria’s medicines landscape — especially for children.
We dive into :
Her reflections on the past challenges of paediatric malaria treatments and why “children are not just small adults” in drug development.
The technical, environmental and regulatory hurdles of developing medicines that children will actually accept — and that can survive real-world conditions in low-resource settings.
How NAFDAC is leveraging cutting-edge technology like GS1 track-&-trace and advanced detection devices to fight fake and substandard medicines in Nigeria’s open drug markets.
The trade-offs regulators face between speeding access (as seen during the COVID-19 vaccine rollout) and maintaining trust, safety and thorough review.
Her faith-inspired work supporting children orphaned by HIV/AIDS and the broader intersection of medicine, ethics and public health.
Her vision for Nigeria: “Made in Nigeria, sold all over the world” — with quality, safety and efficacy at its core.
📖 Further reading: I recently wrote a deeper piece for Devex titled “Can Africa’s drug regulators be both fast and trusted?” which draws on this conversation and broader regulatory trends across the continent. Check it out: https://www.devex.com/news/can-africa-s-drug-regulators-be-both-fast-and-trusted-111147
🔔 Don’t forget to like, subscribe and hit the notification bell so you won’t miss future episodes where we bring together science, policy, innovation and human stories.
👇 Share your thoughts in the comments: What was the most surprising insight for you from this conversation? What do you think it will take to build regulatory systems in Africa that are both fast and trusted?
Season 3 kicks off with Professor Richard Sullivan (King’s College London) on why cancer outcomes depend less on shiny tech and more on end-to-end systems that actually work. We dig into affordability, widening inequalities, and why “reality-stratified” care beats one-size-fits-all blueprints.
Richard unpacks adaptive HTA and health-benefit packages, the limits of screening without treatment pathways, the UK’s own pressure points, and what equitable cancer control looks like in rural, fragile, and conflict settings.
We also talk financing—domestic resource mobilisation, the role of multilateral development banks, and why political commitment matters more than headlines.
Host: Paul Adepoju
Guest: Prof Richard Sullivan, Director, Institute of Cancer Policy, King’s College London
Companion read: Paul’s feature from this interview in The Lancet Oncology: https://www.thelancet.com/journals/lanonc/article/PIIS1470-2045(25)00591-1/abstract
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In this episode of Paul Talks Science, Paul Adepoju sits down with Adam Aspinall, Senior Director of Access & Product Management at Medicines for Malaria Venture (MMV). They discuss the science and strategy behind a groundbreaking new malaria drug for newborns and young children — the first of its kind. From how scientists reformulated existing treatments to meet the needs of infants, to the global regulatory pathways that made rapid approval possible, this conversation sheds light on the innovation, policy, and persistence shaping the future of malaria control.
As people living with HIV live longer, a new challenge emerges: how do we adapt treatment for an ageing population?
In this episode of Paul Talks Science, Paul Adepoju speaks with Dr Loice Achieng Ombajo of the Department of Clinical Medicine and Therapeutics at the University of Nairobi, about research shaping the future of HIV care for older adults. Drawing on findings from two studies, Dr Ombajo explores the shift from three-drug to two-drug regimens, the growing burden of comorbidities such as kidney disease, diabetes and cancer, and the implications of long-term antiretroviral use.
The conversation also tackles why older adults are often overlooked in HIV research, the policy changes needed to protect this rapidly growing group, and what decades of treatment tell us about sustaining health into older age. From funding cuts to the promise of long-acting therapies, this episode examines what it really means to maintain the gains of the HIV response as populations age.
In this special episode of Paul Talks Science—the first in a series recorded during my visit to the Toxics Use Reduction Institute (TURI) at the University of Massachusetts Lowell—I sit down with TURI Director Baskut Tuncak to unpack how economics is playing a pivotal role in driving safer chemical practices.
We explore the Institute's origins, the real-world impact of the Toxics Use Reduction Act, and how businesses are shifting away from hazardous substances—not because they're forced to, but because it makes economic sense.
Baskut also reflects on his global work as a UN Special Rapporteur and explains why TURI’s locally rooted, solution-focused model could be a blueprint for change far beyond Massachusetts.
In this episode, Paul spotlights Oxitec — the biotech company behind one of the most ambitious malaria control projects on the African continent. CEO Grey Frandsen joins Paul Talks Science to break down how Oxitec’s genetically modified mosquitoes are being deployed in Djibouti to target Anopheles stephensi, an invasive urban mosquito driving malaria resurgence in cities.
They discuss how the technology works, why Djibouti is leading the way, and what it takes to scale lab-bred solutions into real-world impact. It's a story of science, strategy — and the promise of fighting malaria with mosquitoes.
🧬 For the full story, read Paul’s feature in Nature Medicine: Battle of the Mosquitoes
What if the future of malaria control involves releasing more mosquitoes — not fewer?
In this special feature episode, science journalist Paul Adepoju takes you deep into the high-stakes fight against a new urban malaria threat: Anopheles stephensi. From the labs of British biotech firm Oxitec to the malaria-stricken streets of Djibouti, and with insight from top global health experts like Dr. William Moss of Johns Hopkins, this narrative journey unpacks how genetically modified mosquitoes are being deployed to stop one of humanity’s oldest diseases.
You’ll hear directly from:
Colonel Abdoulilah Ahmed Abdi, leading malaria control efforts in Djibouti
Grey Frandsen, CEO of Oxitec
Neil Morrison, Oxitec’s Chief Strategy Officer
Dr. William Moss, malaria researcher and public health expert
This episode is based on Paul’s feature story for Nature Medicine. For the full deep-dive, read “Battle of the Mosquitoes” on Nature Medicine online.
🎙️ Science. Public health. Innovation. Genes versus disease — this is Paul Talks Science.
Mpox is surging again across parts of Africa — and this time, it seems like the world is paying even less attention. In this episode, I sit down with Ifeanyi Omah, a Wellcome Trust Doctoral Researcher in Hosts, Pathogens, and Global Health at the University of Edinburgh, to unpack the science behind the current outbreak.
We discuss the evolving mpox landscape, including what genomic data is telling us (and what it isn’t), how human behavior and viral mutations intersect, why Sierra Leone has become a hotspot, and why building Africa’s capacity for outbreak response remains critical.
🎧 This conversation complements my new Lancet article — “Sierra Leone struggles as mpox surges across Africa.”
👉 Read it here: thelancet.com/article/PIIS0140-6736(25)01242-5/fulltext
In this episode of Paul Talks Science, I spoke with Prof. Hedvig Hricak, lead commissioner of The Lancet Oncology Commission on Medical Imaging and Nuclear Medicine, to discuss a historic win for global health: the newly adopted resolution at the 78th World Health Assembly that prioritizes access to medical imaging across low- and middle-income countries.
We talk about how this resolution came to be, what it means for cancer and non-communicable disease care, and how innovations in artificial intelligence and affordable imaging technologies are reshaping the landscape. Prof. Hricak also reflects on the power of collaboration between professional societies, governments, and global health institutions — and why political will is finally catching up to medical reality.
This conversation builds on my reporting for The Lancet Oncology. You can read the full article here:
📖 Cancer took centre stage at the World Health Assembly
Whether you're a policymaker, health professional, or global health advocate, this episode offers insight into how imaging access could shift the future of care — and why this resolution may be the start of something transformational.
In this episode of Paul Talks Science, Dr. Paul Adepoju sits down with Professor Christian Happi—molecular biologist, genomic trailblazer, and one of TIME’s 100 most influential people. From his pioneering work on Ebola and COVID-19 to his vision for translating African genomic data into diagnostics and therapeutics, Prof. Happi shares insights on what it takes to build sustainable science ecosystems in Africa.
They delve into the challenges and opportunities in global health equity, the impact of shifting international research funding, and why local innovation and scientific sovereignty are no longer optional for the continent. This is a conversation about consistency, leadership, and the urgent need for Africa to invest in—and trust—its own scientific capabilities.
In this punchy Paul Talks Science episode, Africa CDC Director-General Dr Jean Kaseya lays out a game-changing vision: shift the continent from donor dependence to home-grown prevention.
Hear how “Made-in-Africa” vaccines, a new primary-health-care push, and community-powered disease surveillance are rewiring public health—and why partners must align with Africa’s roadmap or step aside.
A quick but eye-opening dive into the future of global health leadership.
When U.S. funds abruptly dried up, Nigerian virologist Prof. Oyewale Tomori saw an unlikely gift: proof that Africa can—and must—stand on its own. In this episode, he tells host Paul Adepoju why the continent is “resource-wasteful, not resource-limited,” skewering billion-naira motorcades and idle PCR labs while village health officers lack even a bicycle.
Linking to Paul’s Global Health Now feature “Mosquito Nets and Geopolitical Bets,” Tomori explains how a halted donor-funded supply chain threatens Nigeria’s malaria gains—yet also exposes the folly of outsourcing prevention to foreign budgets.
His prescription? “Throw away the box and think like a human being,” redirecting local money into basics: community-level surveillance, home-grown bed-net factories, and water sanitation that beats disease before it starts.
From the fine line between hope and optimism to the politics of sustaining reform beyond 2027, Tomori’s candor is a wake-up call for policymakers—and anyone who still believes Africa’s health future depends on external lifelines.
Listen for a bracing master-class in prevention-first public health and a roadmap toward true self-reliance.
While roving the abstracts stand at the World Cancer Congress in Geneva (17‑19 September 2024), Paul Adepoju bumps into Swiss TPH PhD researcher Peace Ayeni and ends up unpacking a jaw‑dropping data set of 4.1 million people living with HIV in South Africa. Her study shows that where you pick up your antiretrovirals—an affluent clinic or an under‑resourced township facility—can tilt the odds of getting a cancer diagnosis.
In this episode, you’ll hear:
How the team probabilistically linked national HIV‑lab records to build the SAM cohort, capturing cancers across the country.
Why “cell counts and bank accounts”—immune status and socio‑economic position—create a double jeopardy for cervical, breast and other common tumours.
The hidden epidemic of under‑diagnosis in poorer wards, and what a more decentralised cancer‑screening model could look like.
A quick nerd‑out on conference poster formats (yes, e‑posters vs. paper still sparks debate!).
Whether you’re a global‑health wonk, an equity advocate or just podcast‑curious, this episode maps the tightrope between biology and inequality with data‑rich clarity—and leaves you asking how many cancers we’re still not counting.
(Recorded on the Congress show floor in Geneva, Switzerland.)
On this World Malaria Day, host Paul Adepoju, PhD sits down with genomicist Dr Jane Carlton, Director of the Johns Hopkins Malaria Research Institute, for a candid look at how—and why—the global malaria map keeps shrinking even amid a sudden funding storm.
From decoding Plasmodium genomes and deploying AI-powered diagnostics to rolling out the first WHO-approved vaccines and engineering “better” mosquitoes, Dr Carlton describes the science that’s turning elimination from dream to deadline. She also unpacks the immediate fallout of U.S. aid cuts—lost bed nets, dwindling rapid tests, and stalled fieldwork—and explains why low- and middle-income countries are scrambling to plug the gap.
Yet optimism prevails: new bio-pesticides, precision medicine, and community-led strategies are accelerating progress, with Egypt and others recently joining the 40-plus malaria-free nations list.
Whether you’re a public-health pro, a global-development watcher, or just curious about the tech and tenacity behind disease eradication, this episode delivers insight, urgency, and hope in equal measure. Tune in, share, and join the push toward a malaria-free world.
Recorded amid the buzz of the last World Cancer Congress in Geneva, this double‑feature episode of Paul Talks Science links global policy rooms to ground‑level clinic corridors—with one shared mission: stop cancer before it starts, and treat it smarter when it does.
In the first half
🗣️ Yannick Romero – Senior Knowledge & Advocacy Manager, Union for International Cancer Control (UICC)
Twenty years of the WHO tobacco treaty in 10 minutes—wins, setbacks, and why a 10 % price hike can slash smoking rates by 5 %.
How e‑cigarettes became Big Tobacco’s Trojan horse, and why Africa is the next battleground.
The playbook for a “smoke‑free generation” and what governments must do now.
In the second half
🗣️ Dr Amaka Lasebikan – Director of Research & Innovation, Nigerian Institute for Cancer Research and Treatment (NICRAT)
Launching a national cancer institute from scratch—and ramping Nigeria’s radiotherapy machines from 2 to 8.
Funding a Cancer Health Fund that covers treatment and transport for patients who need it most.
Using AI and home‑grown genomic research to out‑smart tumours, not just chase them.
Why listen?
You’ll hear prevention and precision medicine in the same breath, data‑driven optimism that cuts through doom‑scroll fatigue, and a crash course on how alliances—across borders, sectors and income levels—are our best shot at a cancer‑free future.
🎧 Hit play for hard numbers, human stories and a roadmap that turns treaties into treatment.
🔔 Follow & rate if you want more science served with equal parts fun and fight.
Africa has achieved a remarkable 40% reduction in maternal deaths since 2000—a significant milestone in global health. Yet paradoxically, the continent still accounts for a staggering 70% of maternal deaths worldwide.
In this episode, Paul Adepoju speaks with Dr. Adeniyi Aderoba, WHO's lead on reproductive and maternal health for Africa, to unpack this complex paradox.
They explore what's driving Africa's maternal mortality crisis, highlight innovative interventions making a difference, and discuss how political will, funding, and community empowerment are shaping the fight to save mothers’ lives.
Tune in to discover why pregnancy in Africa should not be a death sentence and how progress can accelerate even further.
Obesity is often framed as a personal failure—but what if the real culprit lies beyond individual choices? In this eye-opening episode of Paul Talks Science, host Paul Adepoju speaks with Dr. Simon Barquera, President of the World Obesity Federation, about the deeper systems fueling the global obesity epidemic. Exploring insights from the latest World Obesity Atlas, they uncover how ultra-processed foods, powerful industry interests, and failing health systems are driving obesity rates upward—especially in low- and middle-income countries.
From discussing effective strategies like healthy taxes and clear food labeling to highlighting best practices from countries successfully combating obesity, this conversation challenges conventional narratives and offers a bold roadmap for systemic change.
Tune in to discover why obesity prevention demands action beyond personal responsibility—and why changing systems can create healthier lives worldwide.
After a cancer diagnosis, many wonder: What can I do to improve my long-term health? In this episode of Paul Talks Science, I sit down with Dr. Helen Croker, Assistant Director of Research and Policy at the World Cancer Research Fund International, to explore the science behind lifestyle choices and cancer survival.
We dive into the latest research on diet, physical activity, and weight management—and whether these factors can truly influence life after cancer. Dr. Croker shares key findings from systematic reviews on breast and colorectal cancer, revealing what the evidence supports, what remains uncertain, and the gaps in research that still need to be filled.
Plus, we discuss:
✅ The role of exercise in improving quality of life for cancer survivors
✅ Common misconceptions about diet, weight, and cancer recovery
✅ Why there’s a lack of research from low- and middle-income countries
✅ The integrity of cancer research—how reliable is the data we trust?
If you or someone you know has been affected by cancer, this episode is packed with evidence-based insights and practical takeaways to navigate life beyond diagnosis.
🎧 Tune in now to get the facts on lifestyle and cancer survival!