On the morning of December 30, 2019, Michael Osterholm, director of the University of Minnesota Center for Infectious Disease Research and Policy, received a call that would echo through the corridors of public health for years to come. A colleague informed him about reports of an unusual pneumonia emerging in Wuhan, China. To Osterholm, this moment felt reminiscent of a seismologist detecting tremors that might herald a catastrophic earthquake. The uncertainty loomed large: Should the public be warned, or would such a warning merely provoke panic?
In his co-authored book, “The Big One: How We Must Prepare for Future Deadly Pandemics,” Osterholm juxtaposes humanity’s heavy investment in military preparation against its scant resources allocated for microbial defense. He starkly reminds us that the 1918 influenza pandemic claimed an estimated 100 million lives—far surpassing the casualties of the recently concluded World War I. The COVID-19 pandemic, he argues, was a “microbial 9/11,” reshaping global politics and everyday life in mere weeks, an impact that no terrorist organization could replicate.
Yet, Osterholm warns, COVID-19 was merely a rehearsal for a far more devastating event he calls “the Big One.” This hypothetical disaster represents a pathogen that is both as contagious as COVID-19 and as lethal as SARS. “Mother Nature still has the upper hand,” he states bluntly, a reminder of the unpredictable nature of viruses and the constant threat they pose to humanity.
To illustrate this impending danger, Osterholm employs a fictional narrative that reads like a disaster film. He describes a farmer in a dusty Somali village, Warsame Osman, who develops a fever and cough, soon spreading his illness to family members and, eventually, the community. The scenario escalates as an aid worker unknowingly carries the virus across continents, highlighting how modern travel can facilitate the rapid spread of infectious diseases. In a world interconnected by air travel, pathogens can traverse the globe at unprecedented speeds, rendering traditional containment efforts nearly obsolete.
Osterholm’s storytelling serves a critical purpose: it underscores the tangible risk of pandemics in our modern world. He reminds us that history offers many cautionary tales. The 1918 influenza virus disproportionately affected young, healthy individuals, while HIV emerged as a slow-burning yet devastating global crisis, claiming millions of lives since the 1980s. Even seemingly benign viruses like Zika can morph into public health emergencies, showcasing the unpredictable nature of viral behavior.
In an era where globalization has transformed human interaction and mobility, infectious diseases now have the means to spread rapidly and widely. Osterholm emphasizes that humanity has become a “biological mixing bowl,” fostering the evolution of viruses at a rate that outpaces our scientific defenses. For instance, a virus like SARS-CoV-2 can replicate in mere hours, creating a staggering advantage of 220,000-to-1 over human response capabilities.
Reflecting on past outbreaks, Osterholm draws from his experience during the 2014 Ebola crisis in West Africa. He led a team of experts who issued a stark warning: Ebola viruses could potentially adapt for respiratory transmission. Despite facing backlash, he has remained steadfast in his belief that the next outbreak could hinge on a single genetic mutation, transforming a local epidemic into a global catastrophe.
The arrival of COVID-19 validated many of Osterholm’s concerns, yet the response was fraught with missteps that ultimately eroded public trust. The bewildering shifts in public health messaging, from discouraging mask-wearing to later endorsing it, left the public disoriented. “The only currency public health has is trust,” he notes, highlighting the critical need for coherent and consistent communication during a crisis.
As supply chains faltered and healthcare systems struggled to cope, politicians often filled the void with misinformation and unproven treatments, further complicating the situation. Although remarkable advancements in science produced vaccines and treatments at record speed, Osterholm insists that technological progress alone is insufficient. A successful response to future pandemics demands collaboration among public health officials, government leaders, and the public, emphasizing the need for transparency about what we do not know.
Osterholm’s critiques extend beyond scientific failures; he addresses the cultural divisions that plagued the pandemic’s response. He stresses that the success of mitigation efforts depends heavily on public compliance, which has been undermined by polarizing narratives around personal freedom and choice.
The warning is clear: while COVID-19 was a significant global challenge, the potential for a more severe pandemic looms. Osterholm reminds us that the fatality rates of past viruses like SARS and MERS reveal the thin line separating regional outbreaks from global calamities. He cites the lessons learned from COVID-19 as a call to action, emphasizing that our vulnerabilities are deeply embedded in our interconnected systems.
The stage is set for the Big One, not through the slow movement of caravans but in the rapid, chaotic environment of modern life, where pathogens can travel and mutate at lightning speed. If the next outbreak is faced with the same confusion and political strife that accompanied COVID-19, the consequences could be dire. The need for preparedness and decisive action has never been more urgent; as Osterholm warns, we are not ready for what lies ahead.
