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Updated: Nov 27, 2025

Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2
Published on: November 5, 2021
Paradoxical effect of SARS-CoV-2 infection in patients with immune thrombocytopenia
Beatriz de la Cruz-Benito1, María I Rivas-Pollmar1, María T Álvarez Román1
1Unit of Thrombosis and Hemostasis, Hematology Department, La Paz University Hospital - IdiPAZ, Madrid, Spain.
Abstract:
Thrombocytopenia has been identified as a common complication of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in the general population. In an attempt to determine the impact of coronavirus disease 2019 (COVID-19) in patients with immune thrombocytopenia (ITP), a retrospective single-centre study was performed. Thrombocytosis was observed in patients with chronic ITP after SARS-CoV-2 infection, frequently needing treatment adjustment or even discontinuation of therapy. Relapses and newly diagnosed cases showed a fast response after initial treatment compared to ITP. Reduced immune activity due to lymphopenia during COVID-19 could explain this paradoxical effect, although further studies are needed.
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