Professor Catherine Green OBE

Leading Vaccinologist & Associate Professor at Oxford

Professor Catherine Green headshot, vaccinologist, professor and keynote speaker

Professor Catherine Green is a world-leading vaccinologist whose work defined one of the most critical public health interventions in modern history. As a senior clinical scientist at the University of Oxford, she played a pivotal role in the development of the Oxford-AstraZeneca COVID-19 vaccine, translating decades of specialized research into a rapid global response under unprecedented pressure.

What distinguishes Catherine is her commitment to scientific rigour over visibility. Her perspective is forged in the meticulous, often invisible work of biotechnology: clinical trials, regulatory scrutiny, and the disciplined uncertainty that underpins credible evidence. She understands that medical innovation progresses through iteration and transparency, arguing that public trust in expertise depends as much on humility as it does on technical speed.

On stage, Catherine is a calm, authoritative, and a very engaging keynote speaker. She deconstructs how evidence-based decision-making functions when the stakes are highest, cutting through misinformation to offer a measured perspective on global health security. Her insights are essential for leaders navigating innovation, risk assessment, and the responsibilities of science in a fractured world.

Signature Keynotes

  • Understanding evidence, uncertainty, and progress.

  • What the COVID-19 response teaches us about collaboration and trust.

  • How scientists assess safety when stakes are high.

  • Why credibility matters more than confidence.

  • Lessons for preparedness, resilience, and cooperation.

The Green Effect

Complex science becomes understandable, credible, and grounded in trust.

Audiences leave with:

  • Clear insight into how vaccines and medical innovation are developed

  • Understanding of risk, evidence, and scientific decision-making

  • Greater trust in how expertise is built and tested

  • Perspective on global collaboration under pressure

  • Appreciation for rigour over rhetoric

Why Book Catherine

Professor Catherine Green is trusted by audiences who value evidence over opinion and clarity over drama. She brings scientific authority without arrogance and reassurance without oversimplification, making her especially compelling for organisations navigating health, risk, ethics, and public trust.

She is particularly powerful for audiences engaging with science, leadership under pressure, misinformation, and the role of expertise in society.

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