An international panel of 179 experts from 28 countries has reached one of the strongest global agreements to date on Long COVID. The consensus confirms that Long COVID is a complex, multi-system condition requiring better diagnosis, research, education and treatment. While many scientific questions remain, the debate is no longer about whether Long COVID exists—it’s about how quickly healthcare systems can translate growing scientific understanding into better care for patients.
Key Facts
- An international panel of 179 experts from 28 countries reached agreement on 187 statements about Long COVID.
- The consensus recognises Long COVID as a complex, multi-system condition that requires multidisciplinary care.
- Experts called for better diagnostic tools, biomarkers and more consistent clinical guidelines.
- The report highlights the urgent need for more research, education and investment in Long COVID services.
- It also recognises the significant impact Long COVID has on employment, education and wider society.
The Conversation Around Long COVID Is Starting to Change
For years, one of the biggest frustrations for people living with Long COVID has been hearing that “there isn’t enough evidence.” Many patients have left appointments feeling that the medical community still couldn’t agree on what Long COVID was, how it should be diagnosed or even whether it should be considered a distinct condition. That uncertainty has filtered down into everyday healthcare, leaving many people struggling to access investigations, specialist referrals or appropriate support.
A new international consensus suggests the scientific conversation has moved much further forward than many people realise. Researchers, clinicians and people living with Long COVID from around the world came together to identify where agreement already exists—not to answer every question, but to establish a shared understanding of the condition. The result was one of the largest expert consensus exercises on Long COVID undertaken so far, with agreement reached on 187 statements covering diagnosis, research priorities, patient care and the wider impact of the disease.
The number itself isn’t really the important story.
The real story is that experts from different countries, different medical specialties and different healthcare systems found far more common ground than disagreement. At a time when many patients still feel they have to justify their illness, this growing international consensus sends a powerful message: Long COVID is no longer an emerging theory. It is increasingly recognised as a complex, multi-system condition that deserves the same rigorous research and clinical attention as any other chronic diseas
What Have Experts Finally Agreed On?
One of the biggest misconceptions about Long COVID is that scientists are still arguing about whether it’s a “real” condition. While there are still many unanswered questions about what causes it and how best to treat it, this international consensus shows that researchers agree on far more than many people realise.
Perhaps the strongest message is that Long COVID is not simply a prolonged recovery from the initial infection. Instead, it is recognised as a complex, multi-system condition that can affect the nervous system, cardiovascular system, immune system, lungs, gastrointestinal tract and many other organs. It can develop after mild or severe COVID-19, and it doesn’t discriminate by age. Adults, children and previously healthy individuals can all be affected.
Just as importantly, the experts agreed that Long COVID isn’t one disease with one biological mechanism. It is likely to consist of several overlapping subtypes, each driven by different underlying processes. That helps explain why one person develops severe post-exertional malaise, another struggles with dysautonomia and palpitations, while someone else experiences persistent respiratory symptoms or cognitive dysfunction. They all have Long COVID, but the biology behind their illness may not be identical.
That shift in thinking could prove to be one of the most important developments in Long COVID research. Instead of searching for one treatment that works for everyone, researchers are increasingly trying to identify different disease mechanisms and match treatments to the patients most likely to benefit. It’s an approach already used successfully in many other areas of medicine, and one that offers far more hope than assuming every patient has the same condition.
So Why Are So Many Patients Still Struggling?
If the science is becoming clearer, why does getting diagnosed or receiving appropriate care still feel so difficult?
The experts addressed this question directly. They acknowledged that one of the biggest barriers facing patients isn’t necessarily the lack of research—it’s the gap between research and clinical practice. Many healthcare professionals simply haven’t received enough training on recognising or managing Long COVID, particularly as our understanding of the condition has evolved so rapidly over the past few years.
This creates a frustrating situation for patients. Scientific knowledge continues to advance, yet everyday clinical care often struggles to keep pace. Depending on where you live, you may find an experienced clinician who immediately recognises post-exertional malaise or dysautonomia, while someone else with exactly the same symptoms is told that their tests are normal and nothing more can be done.
The consensus makes it clear that this inconsistency isn’t acceptable. The panel called for better education, clearer clinical pathways and more consistent diagnostic guidance so that access to care doesn’t depend on geography or finding the “right” doctor. For patients, that may be one of the most encouraging messages in the entire report. The problem isn’t that Long COVID lacks scientific credibility; it’s that healthcare systems are still catching up with what the science already tells us.
What Needs to Change Now?
Although the consensus represents an important milestone, the experts were equally clear that agreement alone won’t improve patients’ lives. What matters now is turning that shared understanding into better diagnosis, better treatments and better access to care.
One of the highest priorities is the development of reliable biomarkers—objective tests that can help diagnose Long COVID and identify its different subtypes. At the moment, diagnosis is based largely on symptoms and clinical assessment, which can leave patients feeling uncertain and clinicians without the tools they need. A reliable blood test or biological marker wouldn’t just improve diagnosis; it would also make clinical trials more accurate and help researchers develop targeted treatments.
The panel also stressed the urgent need for larger, well-designed clinical trials. While dozens of potential treatments are currently being investigated, there is still no universally accepted therapy for Long COVID. Researchers increasingly believe this is because different patients may have different underlying disease mechanisms. Identifying these biological subgroups will be essential if future treatments are to be truly effective.
Beyond research, the experts highlighted something patients have been saying for years: healthcare professionals need better education. Long COVID is evolving rapidly as a field of medicine, and many clinicians simply haven’t had the opportunity to keep pace with the latest evidence. Improving medical education, developing clearer clinical guidelines and creating multidisciplinary services were all identified as essential steps if patients are to receive consistent care.
Why This Matters Beyond Medicine
One of the most refreshing aspects of this consensus is that it looks beyond symptoms alone.
Long COVID doesn’t just affect people’s health—it affects careers, education, family life and financial security. Millions of people have reduced their working hours, left employment altogether or found themselves unable to participate in everyday activities they once took for granted. Parents struggle to care for their children, students fall behind in education and families often become unpaid carers without adequate support.
The experts argue that these wider consequences should no longer be viewed as secondary problems. They are part of the disease itself and should influence how governments, healthcare systems and employers respond. Better rehabilitation services, workplace support, disability recognition and investment in research are all essential if society is to deal with the long-term impact of the pandemic.
This broader perspective is important because it reminds us that treating Long COVID isn’t simply about reducing symptoms. It’s about helping people rebuild their lives.
Final Thoughts
Perhaps the most important message from this international consensus is not that every question has been answered.
It hasn’t.
Researchers are still working to understand exactly why Long COVID develops, why symptoms vary so dramatically between individuals and which treatments will prove most effective.
What has changed is something equally important.
The conversation is gradually moving away from “Does Long COVID exist?” towards “How do we diagnose it better, treat it more effectively and support the millions of people living with it?”
For patients, that shift matters.
It means the debate is becoming less about proving the illness is real and more about improving the care that follows. Progress may feel frustratingly slow, but this consensus shows that scientists around the world are increasingly pulling in the same direction.
For anyone living with Long COVID, that may be one of the most hopeful developments we’ve seen since the pandemic began.
Frequently Asked Questions
What is the global Long COVID expert consensus?
The global expert consensus is an international agreement developed by 179 clinicians, researchers and people with lived experience from 28 countries. Using a structured Delphi process, the panel reached agreement on 187 statements covering the diagnosis, management, research priorities and wider impact of Long COVID.
Does the consensus mean scientists know what causes Long COVID?
Not yet. The report makes it clear that many questions remain about the exact biological mechanisms behind Long COVID. However, there is now growing agreement that it is a complex, multi-system condition involving several different disease processes rather than a single illness with one cause.
Why is Long COVID still difficult to diagnose?
One of the biggest challenges is the lack of reliable biomarkers or laboratory tests. At present, diagnosis is based largely on symptoms and clinical assessment. The consensus identifies the development of objective diagnostic tests as one of the highest research priorities.
What changes do experts want to see?
The panel calls for better education for healthcare professionals, clearer diagnostic guidelines, more multidisciplinary services and significantly greater investment in research. They also emphasise the need for large clinical trials and studies that identify different biological subtypes of Long COVID.
Does the consensus recognise post-exertional malaise and dysautonomia?
Yes. The report recognises that Long COVID can affect multiple body systems and acknowledges the wide range of symptoms experienced by patients. It also supports moving towards identifying different subtypes of Long COVID, recognising that not everyone experiences the condition in the same way.
Last Updated July 2026
Medical Disclaimer
This article is for educational purposes only and should not be considered medical advice. Research into Long COVID is evolving rapidly, and recommendations may change as new evidence emerges. If you think you may have Long COVID or your symptoms are worsening, speak to your GP or healthcare professional for an assessment and appropriate medical advice.
References
- Ewing AG, Joffe D, Blitshteyn S, et al. Long COVID clinical evaluation, research and impact on society: a global expert consensus. Annals of Clinical Microbiology and Antimicrobials. 2025;24:27.
- World Health Organization. Post COVID-19 condition (Long COVID).
- National Institute for Health and Care Excellence (NICE). COVID-19 rapid guideline: Managing the long-term effects of COVID-19 (NG188).
- National Academies of Sciences, Engineering, and Medicine. Long-Term Health Effects of COVID-19: Disability and Function Following SARS-CoV-2 Infection.
Related Articles
- What Is Long COVID? Symptoms, Causes and Current Treatments
- Post-Exertional Malaise (PEM): Why Activity Can Make Long COVID Worse
- Understanding Dysautonomia in Long COVID
- Can COVID Trigger Autoimmune Diseases?
- Long COVID Biomarkers: Are We Close to a Diagnostic Test?
- Why Are Long COVID Blood Tests Often Normal?