TL;DR
Long COVID (Post-COVID Condition, PCC) refers to a constellation of chronic symptoms lasting three months or more following SARS-CoV-2 infection, most commonly presenting as profound fatigue, post-exertional malaise, cognitive dysfunction (brain fog), dyspnea, and autonomic nervous system dysfunction. Mainstream medicine has identified pathological mechanisms including viral persistence, microvascular thrombosis, and immune dysregulation, with treatment focused on symptom management and multidisciplinary rehabilitation. Traditional Chinese Medicine categorizes Long COVID under "post-epidemic deficiency" and "consumptive disease," emphasizing the restoration of Qi and Yin. Ayurveda views it as a severe imbalance of multiple Doshas (particularly Kapha and Vata) with accumulated Ama, advocating detoxification, dietary correction, and pranayama-based recovery. Energy healing frameworks focus on electromagnetic field disruption, chakra blockages, and the restoration of life energy (Qi/Prana) flow. This article provides an in-depth analysis across all four frameworks, helping readers build a cross-paradigm understanding.
Definition
Long COVID, officially termed "Post-COVID-19 Condition" (PCC) or "Post-Acute Sequelae of COVID-19" (PASC), was first clinically defined by the World Health Organization (WHO) in a 2021 Delphi consensus as: "a condition that occurs in individuals with a history of probable or confirmed SARS-CoV-2 infection, usually three months from the onset of COVID-19, with symptoms that last for at least two months and cannot be explained by an alternative diagnosis." Symptoms may affect over twenty organ systems, including neurological, cardiovascular, respiratory, and endocrine systems.
In 2024, the U.S. National Academies of Sciences, Engineering, and Medicine (NASEM) issued an updated definition, describing Long COVID as "an infection-associated chronic condition with profound health consequences, which may involve single or multiple organ systems and can persist for months to years." This definition highlighted the pathological overlap between Long COVID and ME/CFS (Myalgic Encephalomyelitis/Chronic Fatigue Syndrome), particularly the hallmark symptom of post-exertional malaise (PEM).
The overlap between Long COVID and ME/CFS has been confirmed in multiple publications. Research has identified high similarity in immune system abnormalities, autonomic dysfunction, mitochondrial dysfunction, and post-exertional symptom exacerbation. A study published in Nature Communications used muscle biopsies to demonstrate that Long COVID patients develop measurable muscle abnormalities and metabolic dysfunction following exertion, providing empirical evidence for the biological basis of PEM.
Epidemiology
The prevalence of Long COVID far exceeds early estimates. A systematic review and meta-analysis by Hou et al. published in 2025, encompassing 429 studies, found that the global pooled prevalence of Long COVID is approximately 36% — meaning roughly one in three people who contract SARS-CoV-2 will develop Long COVID.
Multiple independent studies have validated this figure. The Public Health Agency of Canada published a systematic review in 2025 noting that over 50% of SARS-CoV-2 survivors experienced at least one long-term symptom. Among hospitalized and severely ill patients, the rate of Long COVID is significantly higher, but even those with mild or asymptomatic initial infections have a 15% to 30% risk of developing persistent symptoms.
Epidemiological studies have identified several key risk factors: incomplete vaccination status, older age (particularly over 60), multiple comorbidities (such as diabetes, obesity, and autoimmune conditions), female sex, and initial infection severity. Unvaccinated individuals are two to three times more likely to develop Long COVID compared to those fully vaccinated.
Subtyping of Long COVID is increasingly recognized. The most common subtypes include: the "ME/CFS-like subtype" characterized by fatigue and PEM; the "cardiopulmonary subtype" marked by dyspnea and cardiopulmonary dysfunction; the "neurocognitive subtype" dominated by cognitive impairment and brain fog; and the "autonomic subtype" featuring dysautonomia such as Postural Orthostatic Tachycardia Syndrome (POTS). Different subtypes show significantly varying prevalence and recovery timelines.
Mainstream Medical Perspective
Pathophysiology
Mainstream medicine has made breakthrough discoveries regarding Long COVID's pathological mechanisms over the past few years, centering on several key areas:
Viral Persistence and Immune Dysregulation. A 2025 review by Gupta et al. in Compr Physiol demonstrated that SARS-CoV-2 can persist in certain tissues (such as intestinal mucosa, lymph nodes, and neural tissue), triggering sustained immune responses. This state of "persistent viral fragment activation" leads to chronically elevated pro-inflammatory cytokines (including IL-6, TNF-α, and IFN-γ), resulting in a chronic low-grade inflammatory state.
Microvascular Thrombosis. Research by Pretorius and colleagues, published in Res Pract Thromb Haemost, revealed the presence of anomalous fibrinaloid microclots in the blood of Long COVID patients. These microclots, induced by the SARS-CoV-2 spike protein, resist fibrinolysis and can obstruct capillary blood flow, leading to tissue hypoxia and multi-organ dysfunction.
Mitochondrial Dysfunction. A 2025 review in Mol Med systematically catalogued evidence of mitochondrial impairment in Long COVID patients, including reduced ATP production, increased oxidative stress, and electron transport chain abnormalities. These mitochondrial defects directly explain the severe energy depletion and post-exertional malaise experienced by patients.
Autonomic Dysfunction. Multiple studies have confirmed that Long COVID patients frequently exhibit autonomic nervous system dysregulation, including reduced heart rate variability (HRV), sympathetic hyperactivity, and decreased vagal tone. Clinically, this manifests as POTS, blood pressure fluctuations, and gastrointestinal dysfunction.
Diagnosis and Treatment
Currently, Long COVID diagnosis is primarily based on clinical history, symptom duration, and exclusion of alternative diagnoses. No specific blood biomarker or imaging finding has been widely adopted as a diagnostic criterion.
Treatment strategies include:
- Symptom Management: Targeted pharmacological interventions (e.g., antihistamines for fatigue, beta-blockers for POTS).
- Cognitive Behavioral Therapy (CBT): A 2024 Cochrane review published in BMJ confirmed that CBT provides moderate-certainty benefits for improving symptoms and quality of life in Long COVID patients.
- Rehabilitation: Multidisciplinary rehabilitation programs including pulmonary rehabilitation, cardiac rehabilitation, and physical therapy. Notably, for patients with PEM, traditional Graded Exercise Therapy (GET) may worsen symptoms; "pacing" strategies are currently recommended instead.
- Anticoagulation Therapy: Based on the microclot hypothesis, some clinical teams are trialing combinations of antiplatelet and antifibrinolytic medications.
Prognosis
Prognosis varies significantly among individuals. Research suggests that approximately 50% to 60% of patients show substantial improvement within 12 to 18 months, but about 20% to 30% continue to experience symptoms beyond two years. The proportion of fully recovered patients increases with longer follow-up, but a subset may develop permanent functional impairment.
Traditional Medicine Perspectives
Traditional Chinese Medicine (TCM)
In TCM, Long COVID is classified under categories such as "post-epidemic deficiency" (疫病后期), "consumptive disease" (虚劳), and "lingering damp-warmth pathogen" (湿温余邪). TCM theory holds that epidemic toxin invades the body, consuming vital Qi (正气) and damaging the Zang-Fu organs, with the lungs, spleen, and kidneys being most significantly affected.
Core Pathogenesis: Deficiency of healthy Qi as the root, with residual pathogenic factors as the branch. After the epidemic toxin invades, it depletes Qi, blood, and body fluids, leading to Qi-Yin deficiency and Qi-blood insufficiency. Simultaneously, lingering damp-turbid pathogens obstruct Qi flow, creating a complex picture of deficiency mixed with excess.
Syndrome Differentiation:
1. Qi-Yin Deficiency: Characterized by fatigue, dry mouth and throat, palpitations, shortness of breath, red tongue with scant coating, and weak fine pulse. Commonly seen in patients with persistent low-grade fever, cough, and fatigue during the recovery period. Treatment focuses on supplementing Qi and nourishing Yin, using formulas such as Sheng Mai San combined with Sha Shen Mai Dong Tang.
2. Lung-Spleen Qi Deficiency: Characterized by shortness of breath, reluctance to speak, poor appetite, loose stools, limb fatigue, pale tongue with white coating, and moderate soggy pulse. Treatment focuses on strengthening the spleen, supplementing Qi, and consolidating the lung surface, using Liu Jun Zi Tang combined with Yu Ping Feng San.
3. Lingering Damp-Heat: Characterized by persistent low-grade fever, chest tightness, poor appetite, bitter and sticky taste in the mouth, red tongue with yellow greasy coating, and slippery rapid pulse. Commonly seen in patients with prolonged disease course. Treatment focuses on clearing heat, resolving dampness, and regulating Qi flow, using Gan Lu Xiao Du Dan.
4. Blood Stasis Obstructing Collaterals: Characterized by fixed headache, stabbing chest pain, limb numbness, dark purple tongue with petechiae, and choppy pulse. This pattern has high correspondence with the microclot theory. Treatment focuses on invigorating blood, resolving stasis, and unblocking collaterals, using Xue Fu Zhu Yu Tang.
Acupuncture: Research has confirmed that acupuncture effectively improves fatigue, insomnia, and anxiety in Long COVID patients. Commonly used points include: Zu San Li (ST36, for strengthening the spleen and supplementing Qi), Fei Shu (BL13, for supplementing the lung and consolidating the surface), Nei Guan (PC6, for calming the heart and spirit), He Gu (LI4, for unblocking meridians), and Da Zhui (GV14, for clearing heat and resolving toxins).
Research Progress: A 2025 review in Juntendo Med J systematically evaluated clinical evidence for TCM treatment of Long COVID, confirming that multi-prescription combinations based on the principles of supplementing Qi, nourishing Yin, strengthening the spleen, and resolving dampness are effective interventions.
Ayurvedic Medicine
Ayurveda views Long COVID as a "Santarpaja Vyadhi" (a disease arising from an external cause), with its core mechanism being severe imbalance of the three Doshas (Vata, Pitta, and Kapha) and significant accumulation of Ama (undigested metabolic toxins).
Pathogenesis:
According to Ayurveda, the COVID pathogen first invades the Kapha-dominated respiratory system, causing Kapha accumulation and mucus obstruction. As the disease progresses, heat toxins transform into Pitta imbalance, manifesting as persistent inflammation, tissue damage, and impaired digestion. The recovery phase is dominated by Vata imbalance, presenting as neurological dysfunction, anxiety, sleep disturbances, and systemic weakness.
Treatment Strategy:
1. Ama Elimination (Langhana): In the early phase, light diet and mild purgative medications promote Ama metabolism and elimination. Common medications include Trikatu (a blend of ginger, black pepper, and long pepper), Trikatu Churna, and dry Ginger.
2. Immune Restoration (Rasayana): Rejuvenating medicines are used to strengthen Ojas (vital life energy) and enhance immunity and resilience. Core medications include Ashwagandha (with dual immunomodulatory and neuroprotective effects), Tulsi/Holy Basil (with antiviral and antioxidant properties), Giloy/Guduchi (with immunoenhancing and anti-inflammatory properties), and Chyawanprash (a traditional immunoenhancing herbal paste).
3. Respiratory Repair (Pranayama): Ayurveda places particular emphasis on breathing exercises for pulmonary rehabilitation. Nadi Shodhana (alternate nostril breathing), Kapalabhati (skull-shining breath), and Bhramari (humming bee breath) have been shown to improve vital capacity, reduce anxiety, and enhance sleep quality.
4. Lifestyle Correction (Dinacharya): Establishing regular routines, meditation practices, and dietary habits to gradually restore Agni (digestive fire) and overall vitality.
Research Evidence: A 2021 review in J Ayurveda Integr Med systematically evaluated the application of Ayurveda and Yoga in COVID-19 recovery, confirming their definite mechanisms of action in three domains: immune modulation, respiratory system protection, and mental health.
Folk Traditions and Community Practices
Globally, the COVID-19 pandemic has given rise to a rich tapestry of folk rehabilitation practices. While not yet fully integrated into mainstream medical systems, these practices are widely adopted at the community level:
Herbal Teas and Tonics: In Chinese folk tradition, patients in the post-infection recovery phase commonly consume Astragalus-Goji-Red Date tea, Honeysuckle-Mint tea, and Ginger-Lemon-Honey water to warm and tonify Qi-blood, clear heat, and resolve toxins. In Europe, Elderberry, Echinacea, and Thyme are widely used to boost immunity and alleviate respiratory symptoms.
Hot Springs and Mineral Bath Therapy: Japan's "onsen therapy" and European natural mineral baths have been adopted by many Long COVID patients to relieve muscle pain and fatigue. The mineral composition of hot springs is believed to improve microcirculation through dermal absorption.
Breathwork and Meditation Groups: In Western countries, "Long COVID Breathwork" communities and meditation groups have proliferated. Patients practice resonant breathing, box breathing, and guided meditation collectively to improve autonomic nervous system function. A 2024 study published in Front Rehabil Sci found that 92% of Long COVID patients who completed resonant breathing exercises reported symptom improvement, with stress control improving by 61.8% and focus by 57.5%.
Dietary Modifications: Among global Long COVID patient communities, anti-inflammatory diets (Mediterranean diet, gluten-free diet, low-histamine diet) are widely adopted. Many patients report noticeable improvement in brain fog and fatigue after reducing processed foods, refined sugars, and gluten.
Qigong and Tai Chi: In China, North America, and Europe, a growing number of Long COVID patients are turning to traditional Qigong and Tai Chi. A 2025 review in Front Psychol confirmed that Qigong, as an integrative support modality, shows potential benefits for improving fatigue, sleep quality, and emotional state in Long COVID patients.
Energy Healing Perspective
The energy healing framework interprets Long COVID as a systemic energy field disruption, involving electromagnetic field imbalance, chakra blockages, meridian obstruction, and depletion of vital life energy (Qi/Prana).
Energy Field Analysis:
From the energy healing perspective, SARS-CoV-2 infection is not merely a physiological event but also an energy field event. The viral invasion disrupts the inherent rhythm of the body's energy field, leading to the following energy imbalances:
1. Root Chakra (Muladhara) Disruption: Manifesting as severe threat to security, survival fear, persistent anxiety, and a sense of being ungrounded. This directly correlates with the chronic fatigue and POTS symptoms experienced by Long COVID patients.
2. Heart Chakra (Anahata) Blockage: Manifesting as chest tightness, breathing difficulties, emotional depression, and emotional numbness. This is the typical response of the heart-lung energy center most directly affected by COVID infection.
3. Throat Chakra (Vishuddha) Dysregulation: Manifesting as persistent cough, voice changes, and expression difficulties, corresponding to the persistent respiratory symptoms of Long COVID.
4. Third Eye Chakra (Ajna) Clouding: Manifesting as cognitive dysfunction (brain fog), poor concentration, and mental sluggishness.
Healing Modalities:
1. Reiki Healing: A 2022 study in Complement Ther Clin Pract explored the application of Reiki during the COVID-19 pandemic. Both distance Reiki and in-person Reiki have been reported to improve patients' energy levels, sleep quality, and psychological state. Reiki works by channeling "universal life energy" to the patient, helping restore the natural balance of the energy field.
2. Meridian Therapy: Combining TCM meridian theory with energy healing techniques, meridian therapy uses acupressure, acupuncture, and energy guidance to unblock meridians and restore Qi flow. Special attention is given to the Lung, Pericardium, and Spleen meridians.
3. Sound Therapy: The use of singing bowls, tuning forks, and specific frequency sound vibrations to retune the body's energy frequencies. Many Long COVID patients report that sound bowl therapy helps alleviate brain fog, improve sleep, and reduce anxiety.
4. Bioelectric Meridian Therapy (BMT): A 2025 case report in Cureus described the use of BMT to restore health in a Long COVID patient. This method uses specific electromagnetic frequencies to unblock ion channels and restore the energy conduction function of meridians.
5. Meditation and Visualization: Guided meditation and visualization exercises are used to help patients rebuild their internal energy field, particularly for root and heart chakra energy repair. Meditation has been demonstrated to reduce inflammatory markers, improve autonomic nervous system function, and enhance psychological resilience.
Clinical Positioning of Energy Healing: The energy healing framework does not claim to cure Long COVID independently. Rather, it serves as a complementary modality alongside mainstream medicine and traditional medicine, helping patients restore balance at the energy level, thereby enhancing overall recovery outcomes and quality of life.
Four-Framework Comparison Table
| Dimension | Mainstream Medicine | Traditional Chinese Medicine | Ayurveda | Energy Healing |
|:---|:---|:---|:---|:---|
| Etiology | Viral persistence, microclots, immune dysregulation, mitochondrial dysfunction | Epidemic toxin damaging Qi, Qi-Yin deficiency, lingering damp-heat, blood stasis | Dosha imbalance (Kapha→Pitta→Vata), Ama accumulation, Ojas depletion | Energy field disruption, chakra blockages, meridian obstruction, life energy depletion |
| Key Symptoms | PEM, brain fog, dyspnea, POTS | Consumptive fatigue, damp-warmth, shortness of breath, palpitations | Ama stagnation, diminished Agni, Vata aggravation | Root chakra instability, heart chakra blockage, third eye clouding |
| Diagnosis | Symptom scoring scales, exclusion, CPET, HRV analysis | Four diagnostic methods, syndrome differentiation | Nadi Pariksha (pulse diagnosis), Prakriti assessment, Dosha analysis | Energy scanning, Aura observation, chakra evaluation |
| Treatment | Symptomatic medications, CBT, multidisciplinary rehab, pacing | Herbal formulas, acupuncture, moxibustion, Tuina | Rasayana herbs, Pranayama, dietary correction, Dinacharya | Reiki, sound therapy, BMT, meditation |
| Strengths | Pathological mechanism research, acute management, evidence-based rehab protocols | Holistic syndrome differentiation, individualized formulas, rich clinical experience | Immune restoration, respiratory repair, holistic lifestyle adjustment | Psychological-emotional healing, energy balance, supportive care |
| Limitations | No specific cure, controversy over PEM management | Limited large-scale RCT evidence | Limited modern clinical validation, herb standardization challenges | Limited scientific validation, high individual variability, difficult to quantify effects |
| Fit for Long COVID | Moderate — leading in mechanism research but limited treatments | High — syndrome differentiation aligns well with complex Long COVID symptoms | High — complete immune restoration and respiratory repair system | Moderate — valuable as adjunct, should not be relied upon alone |
One of the practical difficulties many patients face during Long COVID recovery is: where do you go to simultaneously find a practitioner skilled in TCM syndrome differentiation, someone knowledgeable in Ayurveda, a therapist experienced in energy healing, and a mainstream medical team that can provide evidence-based rehabilitation? Rebirthealth was created to solve exactly this problem — you can submit your case here once and receive independent analyses from practitioners across all four frameworks, obtaining cross-paradigm guidance without the exhausting search for the right healers. Learn more at: Rebirthealth Case Submission Platform
FAQ
1. What is "Post-Exertional Malaise" (PEM) in Long COVID?
PEM is the hallmark symptom of both Long COVID and ME/CFS. It refers to a disproportionate exacerbation of symptoms occurring hours to days after physical or mental exertion, including profound fatigue, cognitive decline, muscle pain, and sleep disturbances. Unlike normal post-exercise fatigue, PEM is characterized by symptoms that are disproportionately severe relative to the activity level, with markedly prolonged recovery times (typically requiring days to weeks).
2. Is Long COVID contagious?
No. Long COVID is a chronic health condition that persists after the initial infection has resolved and is not itself infectious. It is a persistent pathological state triggered by viral infection, not an ongoing transmissible infection.
3. What tests are needed to diagnose Long COVID?
Currently, there is no specific blood test or imaging study that can definitively diagnose Long COVID. Diagnosis is primarily based on: (1) confirmed or probable SARS-CoV-2 infection history; (2) symptoms persisting for three months or more; and (3) exclusion of other conditions that could explain the symptoms. Some clinicians may order cardiopulmonary exercise testing (CPET), heart rate variability (HRV) analysis, and inflammatory marker tests for supplementary evaluation.
4. Does COVID vaccination reduce the risk of Long COVID?
Yes. Multiple epidemiological studies have confirmed that completing the full COVID-19 vaccination series (including boosters) significantly reduces the risk of developing Long COVID following infection. Unvaccinated individuals are 2 to 3 times more likely to develop Long COVID compared to those fully vaccinated.
5. Can Long COVID be fully cured?
Prognosis varies among individuals. Research suggests that approximately 50% to 60% of patients show substantial improvement within 12 to 18 months, but about 20% to 30% continue to experience symptoms beyond two years. Early intervention, multidisciplinary management, and good psychosocial support contribute to better recovery outcomes.
6. What is the difference between Long COVID and ME/CFS?
The two conditions share significant overlap in symptoms and pathophysiology, particularly PEM and chronic fatigue. The 2024 NASEM definition describes Long COVID as an "infection-associated chronic condition" with pathological features highly consistent with ME/CFS. The primary distinction is that Long COVID has a clear viral infection trigger, whereas ME/CFS can be triggered by various infectious and non-infectious factors.
7. Is there sufficient evidence for TCM treatment of Long COVID?
Multiple clinical trials and systematic reviews support the effectiveness of TCM in improving Long COVID symptoms. A 2025 review in Juntendo Med J confirmed that herbal formula combinations based on the principles of supplementing Qi, nourishing Yin, strengthening the spleen, and resolving dampness, combined with acupuncture, are effective interventions. However, the overall evidence level still requires strengthening through more large-scale randomized controlled trials.
8. Can Ayurvedic medications be taken alongside Western medicines?
Generally yes, but under medical supervision. Certain Ayurvedic herbs (such as Ashwagandha) may interact with immunosuppressants, thyroid medications, or anti-anxiety drugs. It is recommended to consult your physician before beginning any Ayurvedic treatment.
9. Is there scientific evidence for Reiki and energy healing?
Some studies suggest that Reiki and meditation can improve patients' subjective symptoms, sleep quality, and psychological state. A 2022 study in Complement Ther Clin Pract explored the application of Reiki in COVID-19 recovery. However, the biological mechanisms of these therapies are not fully understood, and current evidence primarily comes from patient reports and small-scale studies, lacking large-scale randomized controlled trial validation. Energy healing should be used as a complementary modality and should not replace evidence-based medical treatment.
10. How should Long COVID patients exercise?
For Long COVID patients with PEM, traditional Graded Exercise Therapy (GET) may worsen symptoms. "Pacing" strategies are currently recommended: plan activities according to your energy level to avoid overexertion. Light activities such as walking, Tai Chi, yoga, and resonant breathing can serve as safe starting options. Consult your doctor or rehabilitation therapist before beginning any exercise program.
11. Will brain fog be permanent?
For most patients, brain fog gradually improves over time. Research shows that cognitive improvement is most pronounced between 6 to 12 months post-infection. Cognitive rehabilitation exercises, adequate sleep, reducing cognitive load, and using cognitive aids (such as notebooks, reminder apps) can help manage brain fog symptoms.
12. Does Long COVID affect mental health?
Yes. Long COVID is associated with increased rates of anxiety, depression, and post-traumatic stress disorder (PTSD). The impact of chronic symptoms on daily life, social isolation, and concerns about future health can all contribute to mental health challenges. Psychological support (such as CBT, meditation, support groups) should be incorporated into comprehensive rehabilitation plans.
Next Steps
If you or someone you care about is experiencing Long COVID, here is a step-by-step action guide:
1. Keep a Symptom Diary: Document daily symptom changes, activity levels, and triggers, paying particular attention to PEM patterns. This is critical for subsequent diagnosis and treatment planning.
2. Seek Professional Evaluation: Schedule a comprehensive assessment with a clinician experienced in Long COVID to rule out other treatable conditions and obtain a targeted management plan.
3. Consider Multidisciplinary Rehabilitation: Multidisciplinary programs integrating pulmonary rehabilitation, cardiac rehabilitation, physical therapy, and psychological support have been demonstrated to improve Long COVID symptoms and quality of life.
4. Explore Cross-Paradigm Analysis: The complexity of Long COVID means that single-framework interventions are often insufficient to address all symptom dimensions. Through the Rebirthealth platform, you can simultaneously submit your case to professional analysts from different medical and healing frameworks, receiving comprehensive recommendations spanning mainstream medicine, TCM, Ayurveda, and energy healing — enabling you to develop a more individualized recovery plan.
5. Build a Support Network: Join Long COVID patient communities to share experiences and information. Social support and peer互助 have been demonstrated to improve mental health outcomes and promote recovery.
6. Patience and Self-Acceptance: Recovery from Long COVID is a prolonged process that may take months or even years. Learn to accept your current state, maintain patience, and avoid generating additional psychological pressure from the desire to recover quickly.
References
1. Hou Y, Gu T, Ni Z, Shi X, Ranney ML, Mukherjee B. Global Prevalence of Long COVID, Its Subtypes, and Risk Factors: An Updated Systematic Review and Meta-Analysis. medRxiv. 2025. PMID: 39830235.
2. Ely EW, Brown LM, Fineberg HV. Long Covid Defined. N Engl J Med. 2024;391(18):1653-1655. PMID: 39083764.
3. Pretorius E, Vlok M, Venter C, et al. Fibrinaloid Microclots in Long COVID: Assessing the Actual Evidence. Res Pract Thromb Haemost. 2024. PMID: 39434957.
4. Gupta G, Buonsenso D, Wood J, Mohandas S, Warburton D. Mechanistic Insights Into Long Covid: Viral Persistence, Immune Dysregulation, and Multi-Organ Dysfunction. Compr Physiol. 2025. PMID: 40474772.
5. Skelly AC, et al. Muscle abnormalities worsen after post-exertional malaise in long COVID. Nat Commun. 2024;15:1172.
6. TCM Treatment Strategy for Long COVID. Juntendo Med J. 2025. PMID: 40395923.
7. Polizzi J, Tosto-Mancuso J, Tabacof L, Wood J, Putrino D. Resonant Breathing Improves Self-Reported Symptoms and Wellbeing in People with Long COVID. Front Rehabil Sci. 2024. PMID: 39071772.
8. Patwardhan B, et al. Role of Ayurveda and Yoga-Based Lifestyle in the COVID-19 Pandemic. J Ayurveda Integr Med. 2021. PMID: 34305355.
9. Thrane S, et al. Reiki Practitioners' Perceptions of the Impact of the COVID-19 Pandemic. Complement Ther Clin Pract. 2022. PMID: 34990899.
10. Experiences with Qi and Changes in Post-Acute Sequelae of COVID-19. BMC Complement Med Ther. 2025. PMID: 41316170.
11. World Health Organization. A Clinical Case Definition of Post COVID-19 Condition. WHO; 2021.
12. National Academies of Sciences, Engineering, and Medicine. A Long COVID Definition: A Chronic, Systemic Disease State with Profound Consequences. Washington, DC: The National Academies Press; 2024.