Decreasing Incidence of the Multisystem Inflammatory Syndrome in Children Over 3 Pandemic Waves
Irini Eleftheriou, Despoina Maritsi, Stavroula Lampidi, Konstantina Charisi, Petrina Vantsi, Kleopatra Skourti, Filippos Filippatos, Ioannis Amplianitis, Despina Dimou, Kyriaki Papadopoulou‐Legbelou, Efimia Papadopoulou‐Alataki, Parthena Kampouridou, Patra Koletsi, Lampros Fotis, Eleni Vergadi, Despοina Gkentzi, Evangelia Farmaki, Vassiliki Papaevangelou, Emmanouil Galanakis, Ioanna N. Grivea, George A. Syrogiannopoulos, Vana Spoulou, Νikos Spyridis, Athanasios Michos, Emmanuel Roilides, Μαρία Τσολιά
Abstract
In this nationwide retrospective study, a substantial decline in the incidence of multisystem inflammatory syndrome in children over 3 successive pandemic waves characterized by different severe acute respiratory syndrome coronavirus 2 variants was documented-from 3.4 of 1000 to 1.1 of 1000 and finally to 0.25 of 1000 confirmed severe acute respiratory syndrome coronavirus 2 positive cases (P < 0.0001), respectively, whereas clinical findings and severity did not significantly vary.