Letter to the EditorCytokine levels in sputum, not serum, may be more helpful for indicating the damage in the lung and the prognosis of severe COVID-19 – A case series
Keywords
COVID-19
BALF
Sputum
IL-6
TNF-α
Abbreviations
COVID-19
coronavirus disease 2019
SARS-CoV-2
severe acute respiratory syndrome coronavirus 2
BAL
bronchoalveolar lavage
BALF
bronchoalveolar lavage fluid
CRRT
continuous renal replacement therapy
ECMO
extracorporeal membrane oxygenation
CT
computed tomography
ICU
intensive care unit
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These authors have contributed equally to this work.
© 2021 Published by Elsevier Ltd on behalf of The British Infection Association.