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Immune system may attack nervous system in some Long COVID patients

Research suggests that some Long COVID patients have antibodies that target brain and nerve tissues, leading to autonomic nervous system imbalance. This can cause symptoms such as extreme fatigue, brain fog, and cognitive issues. The findings may inform treatments for these symptoms. Long COVID remains difficult to treat due to its varied and unpredictable symptoms.

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What changed

Recent studies have provided new insights into immune cell changes in Long COVID patients, shedding light on potential causes of symptoms.

Live updates

  1. Immune system may attack nervous system in Long COVID patients

    Research suggests that some Long COVID patients have antibodies that target brain and nerve tissues, leading to autonomic nervous system imbalance. This can cause symptoms such as extreme fatigue, brain fog, and cognitive issues. The findings may inform treatments for these symptoms. Long COVID remains difficult to treat due to its varied and unpredictable symptoms.

    Why it matters

    Long COVID affects millions of people worldwide, with symptoms persisting long after initial infection. The condition can significantly impact daily life, causing debilitating fatigue, cognitive impairment, and other issues. Understanding the underlying mechanisms is crucial for developing effective treatments. The immune system's role in Long COVID is a key area of research.

    What is confirmed

    • Extreme fatigue, brain fog, and aching joints are symptoms of Long COVID.
    • Long COVID remains difficult to treat due to its varied and unpredictable symptoms.
    • Some Long COVID patients possess antibodies that attack brain and nerve tissues.

    What to watch next

    • Further research on immune system involvement in Long COVID
    • Development of standard treatments for Long COVID
    • Studies on the prevalence of Long COVID in different populations
    Sources used for this update (4)
    1. www.lung.org — What Parents Need to Know About Long COVID in Kids
    2. medicalxpress.com — Long COVID and immune 'soldier' cells: Q&A
    3. www.news-medical.net — Immune cell changes provide new insights into long COVID
    4. www.news-medical.net — Study links ancient evolutionary pressures to severe COVID-19 risk
    confidence 100%

  2. Long COVID Linked to Autonomic Nervous System Dysfunction

    Research indicates some Long COVID patients possess antibodies that attack brain and nerve tissues. New studies show these patients exhibit significant autonomic nervous system imbalance during tilt table testing. These findings may inform treatments for fatigue and cognitive issues.

    What's confirmed:

    • Long COVID is associated with autonomic nervous system dysfunction.
    • Common symptoms of Long COVID include fatigue, shortness of breath, and cognitive dysfunction.
    • A study of 39 Long COVID patients and 22 healthy controls found the patient group had a blunted sympathetic response and impaired autonomic function during tilt testing.
    • Antibodies from some Long COVID patients attack nerve and brain tissues.

    Still unconfirmed:

    • Mitochondrial restoration and neuroplasticity protocols are available as treatments in 2026.
    • Mice given Long COVID antibodies experienced pain and dizziness.
    Sources used for this update (9)
    1. Long Covid Weekly #185:Metformin, Brain Changes, and Autoantibodies
    2. COVID-19 Long-Term Symptoms: What We Know in 2026
    3. Assessing autonomic nervous system imbalance in long COVID-19 patients ...
    4. New Long COVID Treatments in 2026: What's Available - Doctronic
    5. Autonomic Nervous System Dysfunction After Viral Infections
    6. Long COVID - Wikipedia
    7. Adaptive immunity - Latest research and news | Nature
    8. Can stress age your stem cells? New mice study points to gut-brain-bone marrow link
    9. Immune system may attack nervous system in some Long COVID patients
    confidence 90%

  3. Yale study links Long COVID neurological symptoms to autoimmune response

    Research co-led by Yale scientists shows antibodies from some Long COVID patients attack nerve and brain tissues. Mice given these antibodies experienced dizziness and pain. This finding may lead to new treatment options.

    What's confirmed:

    • Antibodies from some Long COVID patients attack brain and nerve tissues.
    • Mice receiving antibodies from Long COVID patients showed symptoms of dizziness and pain.

    Still unconfirmed:

    • Hundreds of science and research advisors have been dismissed since President Trump took office, including a committee on Long COVID.
    Sources used for this update (5)
    1. A look at the science that's been lost on long COVID
    2. Yale study links some long COVID patients to autoimmune responses
    3. New Evidence Supports Autoimmunity as One of Long COVID's Underlying ...
    4. Post by @tomkindlon.bsky.social — Bluesky
    5. Browse Articles | Nature Reviews Immunology
    confidence 90%

  4. Immune System May Attack Nervous System in Long COVID Patients

    Research indicates that antibodies in some Long COVID patients attack nervous tissue. This autoimmune response is linked to neurological symptoms such as fatigue and brain fog. An estimated 65 million people worldwide are affected by Long COVID.

    What's confirmed:

    • Researchers linked antibodies that attack the nervous system to neurological symptoms of Long COVID.
    • Autoantibodies in Long COVID patients attack nervous tissue, contributing to fatigue and brain fog.
    • Long COVID affects an estimated 65 million people worldwide.
    • The condition can cause damage to the brain, heart, blood vessels, and immune system.

    Still unconfirmed:

    • Blood antibody levels could clarify long COVID prognosis and memory problems.
    • Long COVID symptoms may be linked to micro-clots and disrupted energy metabolism.
    Sources used for this update (17)
    1. How To Recognize Long COVID Symptoms And Advocate For Yourself
    2. Immune system may attack nervous system in some Long COVID patients
    3. Blood antibody levels could clarify long COVID prognosis and memory problems
    4. Pathological potential of autoantibodies in long COVID
    5. SARS and MERS trigger immune brake that shuts down antiviral defenses, study finds
    6. Scientists Discover New Evidence a Common Virus Helps Trigger MS
    7. Why some people still have long Covid – and others never did at all
    8. ‘My organs shut down, now I’m in a wheelchair’: The lives ruined by Covid jabs
    9. RFK's handpicked advisers are coming for the childhood vaccine schedule. Here's...
    10. Immune system may attack nervous system in some Long COVID patients
    11. NIH study finds immune attack on nervous system may drive Long COVID
    12. Neurological Effects of Long COVID
    confidence 90%