• Antibodies to HHV-6 during acute COVID-19 may help predict development of Long COVID

    Autoantibodies directed against neural targets have most predictive power.

  • iciHHV-6B linked to systemic lupus erythematosus (SLE) in Japanese and European populations

    iciHHV-6B, when integrated into chromosome 22q, was strongly associated with SLE and with SLE severity.

  • HHV-6 linked to miscarriage through Mendelian randomization studies

    The findings are consistent with previous studies directly linking HHV-6 endometrial infection to miscarriage.

  • Finnish investigators find unexpected evidence of HHV-6B integration into mitochondrial DNA

    Could HHV-6B infection exacerbate mitochondrial disease?

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Latest COVID-19 / HHV-6 Reactivation Articles

View Post

Antibodies to HHV-6 during acute COVID-19 may help predict development of Long COVID

In All, CNS Disease, COVID-19 / HHV-6 Reactivation, ME/CFS by Kristin LoomisJanuary 7, 2025

Autoantibodies directed against neural targets have most predictive power.

View Post

HHV-6-IgG antibodies correlate with evidence of leaky gut in patients with Long COVID

In All, COVID-19 / HHV-6 Reactivation, Gastrointestinal by Kristin LoomisJanuary 7, 2025

Whether HHV-6 has a causal role in leaky gut is not addressed.

View Post

COVID-19 patients with HHV-6 DNA and CNS symptoms showed increased expression of miR-155

In All, COVID, COVID-19 / HHV-6 Reactivation, Genes by Kristin LoomisAugust 29, 2023

Both HHV-6 and specific microRNAs may correlate with neurological symptoms in COVID-19.

View Post

Herpesvirus Reactivation Common in Severe COVID-19

In All, COVID, COVID-19 / HHV-6 Reactivation by Kristin LoomisAugust 3, 2023

HHV-6 was the most common herpesvirus found when tested in nasal swabs, but EBV was the most common in plasma.

View Post

Systematic review of pityriasis rosea following COVID-19 and/or vaccination

In All, COVID, COVID-19 / HHV-6 Reactivation, Rash & Roseola by Kristin LoomisAugust 29, 2023

Pityriasis rosea was reported more frequently after vaccination than during or after acute infection.

View Post

Are herpesviruses reactivated more often in acute COVID-19?

In All, Autoimmune Disease, COVID, COVID-19 / HHV-6 Reactivation by Kristin LoomisJuly 3, 2023

Systematic review and meta-analysis found strong evidence for EBV in the seriously ill; only 6 of 36 studies included HHV-6 testing.

View Post

Fatal myocarditis from HHV-6 in immunocompetent adult suspected of COVID-19

In All, COVID-19 / HHV-6 Reactivation, Heart Disease by Kristin LoomisFebruary 20, 2023

Case report does not distinguish HHV-6A from HHV-6B nor possible role of virus in other organ pathology.

View Post

Reactivation of latent herpesviruses and HERVS after mild COVID-19

In All, CNS Disease, COVID-19 / HHV-6 Reactivation, ME/CFS by Kristin LoomisDecember 5, 2022

Findings are accentuated in people with myalgic encephalomyelitis/chronic fatigue syndrome.

View Post

EBV and HHV-6 plasma viremia is infrequent at Day 7 during acute COVID-19

In All, CNS Disease, COVID, COVID-19 / HHV-6 Reactivation, Latest Scientific News by Kristin LoomisOctober 21, 2022

Other studies have suggested that reactivation of these viruses could theoretically contribute to a hyperinflammatory state or autoimmune disorders in acute COVID-19, but this study does not provide evidence of that.

View Post

The presence of HHV-6 DNA in nasal swabs correlates with neurological symptoms in patients with severe COVID-19

In All, CNS Disease, COVID, COVID-19 / HHV-6 Reactivation by Kristin LoomisJuly 12, 2022

40% of the patients with HHV-6 DNA had CNS symptoms, compared to 14.3% of the HHV-6 negative patients.

View Post

Reactivation of herpesviruses demonstrated in severely ill patients with acute COVID-19

In All, COVID, COVID-19 / HHV-6 Reactivation, Immune Dysfunction by Kristin LoomisMay 20, 2022

EBV, CMV, and HHV-6 reactivation were found in a small cohort of severe COVID-19 patients

View Post

Does HHV-6B reactivate in COVID-19 patients?

In All, COVID, COVID-19 / HHV-6 Reactivation, Lung Disease, Rash & Roseola by Kristin LoomisJune 2, 2020

So far only one case report has documented HHV-6B reactivation in COVID-19, but the rise in Kawasaki-like symptoms and pityriasis rosea has at least one dermatology group suspicious of HHV-6/7 reactivation.

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ABOUT THE HHV-6 FOUNDATION

The HHV-6 Foundation in a non-profit entity founded to encourage scientific exchange between investigators and to provide pilot grants for promising scientific and clinical research on the under- appreciated viruses HHV-6A and HHV-6B.

The Foundation sponsors international conferences and supports scientists and clinicians seeking to clarify the role of the two HHV-6 viruses in disease. Since HHV-6A and HHV-6B can smolder in the brain and other organs without circulating in the peripheral blood or plasma, identifying chronic infection is a challenge.

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