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Scientists are actively studying long COVID, a condition characterized by persistent and debilitating symptoms.
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There is currently no validated treatment or specific diagnostic test for long COVID, though various candidates are being explored.
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Clinicians treating long COVID patients acknowledge the uncertain nature of the field and often focus on alleviating individual symptoms.
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Researchers have made progress in understanding the underlying causes of long COVID, presenting their findings at a recent conference.
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Dr. Catherine Blish emphasizes that progress has been made, despite frustrations over the pace of discovery.
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The conference highlighted the emergence of clear biological evidence supporting patients' reports of long COVID symptoms.
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Evidence of viral persistence in the blood and tissue of some long COVID patients suggests a potential mechanism for the condition.
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Dr. Michael Peluso's research shows the presence of viral antigen in the blood of individuals even months after recovering from COVID-19.
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However, not all long COVID patients exhibit viral persistence, and some asymptomatic individuals also show this phenomenon.
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Imaging technology tracking T cell activity offers additional leads in understanding the immune response in long COVID.
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