In the first episode of “Trailblazers with Gary,” Global Health Matters podcast host Dr Garry Aslanyan sat down in South Africa with Professor Tulio de Oliveira — one of TIME Magazine’s 100 most influential people in global health.

Oliveira leads the Centre for Epidemic Response and Innovation at Stellenbosch University and was part of the team that first identified the Beta and Omicron variants of COVID-19.

Aslanyan and Oliveira met in Oliveira’s lab to talk about the real story behind the Omicron discovery, how Africa came together to fight the pandemic, and why pandemic preparedness must remain a top priority, even as the world moves on.

Oliveira opened up about his roots in Brazil, his family’s move to Africa during the post-apartheid years, and how those early experiences shaped his life’s mission. Oliveira said he sees global health not as a job, but as a moral responsibility — one that requires constant vigilance, collaboration, and investment.

Aslanyan and Oliveira also discussed how climate change is already fueling new health crises across the globe. From dengue outbreaks in Ethiopia to cholera in Malawi, Oliveira explained how extreme weather, flooding, and increased mobility are making epidemics more likely — and more dangerous.

His message was clear: global health funding cuts are not just short-sighted — they’re dangerous. Pathogens don’t respect borders. Without strong, coordinated systems in place, we’re setting ourselves up for the next pandemic to hit even harder.

His advice to the global health community? Stay focused. Deliver results. And never underestimate the power of preparation.

Watch the full episode:

Image Credits: TDR – Global Health Matters.