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. 2020 Jun 15;42(Suppl 1):11–18. doi: 10.1111/ijlh.13229

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© 2020 John Wiley & Sons Ltd

This article is being made freely available through PubMed Central as part of the COVID-19 public health emergency response. It can be used for unrestricted research re-use and analysis in any form or by any means with acknowledgement of the original source, for the duration of the public health emergency.

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Morphologic features of circulating cells from peripheral blood films of patients with COVID‐19 infection. Neutrophils show hyposegmented nuclei (A‐C), sometimes with pre‐apoptotic chromatin (B), and hypergranular cytoplasm, sometimes with hypogranular basophilic areas (C). Such dysmorphism appears related to the accelerated and disorderly granulopoiesis associated with hyperinflammation. Reactive lymphocytes with large amounts of pale blue cytoplasm (D), lymphoplasmocytoid cells, and large granular lymphocytes predominate in treated and recovering patients (May‐Grünwald‐Giemsa, original magnification ×1000)