Immune profile of children with post-acute sequelae of SARS-CoV-2 infection (Long Covid)
Di Sante, G.; Buonsenso, D.; De Rose, C.; Valentini, P.; Ria, F.; Sanguinetti, M.; Sali, M.
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There is increasing reporting by patients organization and researchers of long covid (or post-acute sequelae of SARS-CoV-2 - PASC), characterized by symptoms such as fatigue, dyspnea, chest pain, cognitive and sleeping disturbances, arthralgia and decline in quality of life. Immune system dysregulation with a hyperinflammatory state, direct viral toxicity, endothelial damage and microvascular injury have been proposed as pathologenic mechanisms. Recently, cohorts of children with PASC have been reported in Italy, Sweden and Russia. However, immunological studies of children with PASC have never been performed. In this study, we documented significant immunologic differences between children that completely recovered from acute infection and those with PASC, providing the first objective laboratory sign of the existence of PASC in children.
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