Serum biomarkers for nutritional status as predictors in COVID-19 patients before and after vaccination.

"the mass spectrometry proteomics data have been deposited in the proteomexchange consortium via the pride partner repository with the dataset identifiers pxd024549 https://doi org/10 6019/pxd024549 ( ) and pxd031969 https://doi org/10 6019/pxd031969 ( ). appendix a supplementary material the following are the supplementary data to this article: supplementary data 1 data availability data will be made available on request."

"Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper."

"Funding This study was supported by Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación, Spain and EU-FEDER [Grant BIOGAL PID2020-116761 GB-I00]. RV-R was funded by Universidad de Castilla-La Mancha (UCLM), Spain and the European Social Fund (ESF) [grant 2022-PRED-20675]. LM was supported by UCLM and the ESF [grant 2021-POST-32002]. The use of samples and individual data was approved by the Ethical and Scientific Committees (University Hospital of Ciudad Real C-352 and SESCAM C-73). Written informed consent for participation was not required for this study in accordance with the national legislation and the institutional requirements. CRediT authorship contribution statementRita Vaz-Rodrigues: Methodology, Writing – original draft. Lorena Mazuecos: Methodology, Writing – original draft. Margarita Villar: Conceptualization, Methodology, Writing – original draft. José Miguel Urra: Conceptualization, Methodology, Writing – original draft. Christian Gortázar: Conceptualization, Writing – original draft. José de la Fuente: Conceptualization, Writing – original draft, Funding acquisition."