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We read with great interest the COVID-LT study by C Becchetti et al,1 which included 57 liver transplant (LT) patients from 12 European institutions who were diagnosed with coronavirus disease 2019 (COVID-19). Simultaneously, the Spanish Society of Liver Transplantation (SETH) has conducted a nationwide prospective study including 22 transplant institutions and 111 LT patients with COVID-19.2 Since there were only nine overlapped cases, both cohorts add up to 159 LT patients and taken together their close analysis (table 1) may derive in practical conclusions.
The crude incidence of COVID-19 was increased in the SETH study as compared with the COVID-LT study (0.84% vs 0.48%), even with a shorter recruitment period. This could be explained because the SETH study was performed during the outbreak period in Spain, one of the toughest in Europe.3 The SETH study …
Contributors MRP drafted the manuscript; MS, JC and JAP critically reviewed the manuscript for important intellectual content. All authors have approved the final version of the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Provenance and peer review Not commissioned; externally peer reviewed.