HHV-6 encephalitis
MONDO:0027029HHV-6 encephalitis refers to inflammation of the brain due to an infection with human herpesvirus 6. People who have undergone allogeneic hematopoietic cell transplantation are at an increased risk for developing HHV-6 encephalitis, particularly when umbilical cord blood stem cells are used. People with immune system disorders may also be at an increased risk for developing this infection. Signs and symptoms vary, but often include confusion, anterograde amnesia (difficulty learning new information following the onset of amnesia), short-term memory loss, and seizures.Diagnosis often involves lumbar puncture, virus testing, and MRI. EEG 's may also be recommendedwhen seizures are suspected. HHV-6 encephalitis is treated with an antiviral agent with activity against HHV-6. Long term outlook (chance of full recovery) can vary considerably depending individual patient factors.
Also known as: Human Herpesvirus 6 encephalitis, Variant A or HHV-6A, Variant B or HHV-6B
8 clinical trials for this condition and its sub-types.
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Scientists compare immune responses to viral and bacterial infections in ICU patients
Knowledge-focused OngoingThis study looks at how the immune system of patients in the intensive care unit (ICU) responds to severe infections caused by viruses or bacteria. Researchers will take extra blood samples from 38 adults to analyze immature granulocytes, a type of immune cell. The goal is to see…
Phase: NA • Sponsor: University Hospital, Limoges • Aim: Knowledge-focused
Last updated Jun 28, 2026 00:00 UTC
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Massive review of viral meningitis cases aims to sharpen diagnosis
Knowledge-focused OngoingThis study looks back at 4000 patients who had a suspected viral infection of the brain or spinal cord. Researchers will analyze which viruses were found and how the illness progressed in different groups, including children, adults, and people with weakened immune systems. The g…
Sponsor: IRCCS Azienda Ospedaliero-Universitaria di Bologna • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:12 UTC