Serum IgG4 elevation in hyper-inflamed COVID-19 patients. Author's reply

Eur J Intern Med. 2022 Jan:95:98-99. doi: 10.1016/j.ejim.2021.10.025. Epub 2021 Oct 22.

¹ IRCCS San Raffaele Scientific Institute, Università Vita-Salute San Raffaele, via Olgettina 60, Milan 20132, Italy; Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Milan, Italy. Electronic address: dellatorre.emanuel@hsr.it.
² IRCCS San Raffaele Scientific Institute, Università Vita-Salute San Raffaele, via Olgettina 60, Milan 20132, Italy; Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Milan, Italy.
³ Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Milan, Italy.
⁴ General Medicine and Advanced Care Unit. All at IRCCS San Raffaele Scientific Institute, Milan, Italy.

No abstract available

Keywords: COVID-19; IgG4; Immunoglobulins; SARS-CoV-2; Subclasses.

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