Pandemic Prevention Starts with Finding COVID-19’s Root Cause

• Major disasters triggered multiple independent searches for answers — Gurley examined the 2021 Surfside condominium collapse, the Boeing 737 MAX crashes, Hurricane Katrina, Fukushima and the Challenger disaster. In each example, multiple groups pursued the cause, from journalists and government investigators to scientists, whistleblowers and victims’ families.

Gurley emphasized that these groups didn’t always cooperate. Sometimes they collided or challenged one another. That independence was useful because it gave the public several paths to evidence rather than one institution’s explanation.

• Root-cause analysis follows a step-by-step process — Gurley highlighted Corrective and Preventive Action (CAPA), a framework built around five steps: “detect, investigate, confirm root cause, correct, and prevent.” Prevention depends on first establishing what produced the failure. CAPA isn’t an abstract idea.

Gurley noted that the U.S. Food and Drug Administration requires it in pharmaceutical and medical device manufacturing, where companies must investigate the cause of a quality problem and take action to correct it and keep it from recurring.

Think of it like fixing repeated water damage in your house. Replacing wet drywall addresses the damage, but it won’t stop another leak. You first need to determine whether the source is a pipe, roof or foundation. Gurley applies the same logic to pandemic prevention: “You don’t know how to fix it if you don’t know actually what happened.”

• Independent investigators exposed failures that institutions resisted — Gurley repeatedly contrasts “searchers,” who pursue the cause, with “blockers,” institutions or people who resist scrutiny. After Challenger, physicist Richard Feynman conducted his own investigation rather than simply review information supplied to the presidential commission. He famously demonstrated the vulnerability of the shuttle’s O-ring material to cold during a televised hearing.

Gurley sees an important lesson here: expertise alone isn’t enough. Investigators also need independence and access to evidence. His examples show why records, firsthand testimony and competing analyses matter when the organization under investigation has an interest in defending its past decisions.

• The DEFUSE proposal provides a specific lead investigators could test — Gurley gives particular attention to DEFUSE, a research proposal from EcoHealth Alliance that involved coronavirus researchers in the U.S. and China. According to Gurley, the proposal described plans involving insertion of a furin cleavage site at the S1-S2 junction of a bat coronavirus.

The proposal was submitted in 2018 to the Defense Advanced Research Projects Agency (DARPA), which declined to fund it; whether any of the proposed work was carried out with other funding remains unknown.²

A furin cleavage site is a section of a virus’s spike protein that certain enzymes cut, which affects how the virus enters cells. Gurley argues that DEFUSE warrants scrutiny because SARS-CoV-2 also has a furin cleavage site. Importantly, the existence of a proposal doesn’t establish that the proposed experiment took place or that it produced SARS-CoV-2. Gurley presents it as an investigative lead that calls for primary records and further examination.

• Gurley argues that early messaging narrowed the search too quickly — He contends that influential virologists and scientific publications helped establish animal spillover as the favored explanation while lab-origin questions became associated with conspiracy theories. He describes this as a failure of scientific inquiry because investigators need freedom to test competing explanations.

Gurley points to later-released communications and the subsequent debate over early scientific papers as reasons to scrutinize how that consensus formed. His concern centers on the investigation itself: “There’s no one that should be telling you you can’t search.”

• Gurley refuses to declare either origin theory proven — When directly asked which origin scenario he believed was most likely, Gurley answered, “I intentionally didn’t take a side on that here,” adding that the root cause had not been found. He even said he would support researchers who wanted to continue searching for evidence of animal spillover.

That distinction keeps an open investigation from becoming a predetermined verdict. For pandemic prevention, the useful question is which explanation survives a thorough examination of primary evidence, and what safeguards that evidence says to change before another outbreak occurs. The same discipline Gurley wants applied to COVID-19 works on a much smaller scale, too.

1. Ask what caused the problem before trying to fix it — When something goes wrong, the first instinct is often to make the immediate problem disappear. Instead, ask what produced it. If the same problem keeps returning, that’s an especially strong reason to look deeper. You can apply this to your health as well as everyday life.

If you repeatedly feel exhausted, for example, simply finding ways to push through the fatigue addresses the symptom rather than explaining why it keeps occurring. Start with the question, “What changed, and what could be driving this?” Keep a simple log of sleep, meals, stress and energy for two weeks, then bring it to your health care provider so testing can target likely causes rather than the symptom alone.

2. Separate evidence from interpretation — Whether you’re reading about COVID-19, nutrition or another controversial subject, distinguish what has actually been documented from what someone concludes about it. Those are two different things.

Try a simple test whenever you encounter a strong claim: “What evidence would I need to see to believe this?” Then ask what evidence would change your mind. This keeps your standard consistent even when you strongly prefer one explanation.

3. Go back to the original information — Headlines, social media posts and commentary add layers of interpretation between you and the underlying evidence. When an issue affects an important decision, trace the claim back as far as you reasonably can.

Look for the original research, document, interview or other primary source. You won’t always have the expertise to evaluate every technical detail, but you’ll often spot missing context, stronger qualifications or differences between what the source says and what someone says it says.

You can practice this with the COVID-19 origins debate itself. Drafts and the submitted version of the DEFUSE proposal have been made public through a leak and Freedom of Information Act requests, so you can read what it actually described instead of relying on summaries.²

4. Consider who has an interest in the answer — Gurley’s examples show why independence becomes important when an organization has to investigate events connected to its own decisions. The same principle helps you assess information in other areas.

If you’re evaluating health advice, a product recommendation or an institutional claim, ask who funded the work, who benefits from the conclusion and whether independent sources reached similar findings. A conflict of interest doesn’t automatically make a claim false. It tells you where independent verification becomes especially valuable. In the COVID-19 debate, that applies to any researcher or institution whose own work could be implicated by one of the origin scenarios.

5. Match your solution to the root cause — Once you identify a cause, choose an action that addresses it rather than repeatedly managing its effects. Gurley’s CAPA framework follows this basic logic: identify the failure, determine its cause, correct it and prevent its recurrence.

You can turn that into a personal checklist: What happened? What evidence explains why? What can I change? How will I know whether the change worked? Whether you’re evaluating pandemic policy, your health or a recurring problem at home or work, that process gives you a clearer path from identifying a problem to actually solving it.