Sensitivity of two SARS-CoV-2 variants with spike protein mutations to neutralising antibodies.

"Declarations Conflict of interestThe authors declare no conflict of interest. Ethical approvalThe study was carried out in-line with “The Code of Ethics of the World Medical Association (Declaration of Helsinki)”. The use of serum samples complied with the guidelines of the Central Ethics Committee of the German Medical Association (Dtsch Arztebl 2003; 100(23): A-1632). In accordance with these guidelines, the anonymized use of residual material from the samples sent to our laboratory for diagnostic purposes is permissible, provided that the patients have not decided against this procedure. Samples from patients who had decided against this procedure were excluded from the analyses. Conflict of interest The authors declare no conflict of interest."

"Funding Open Access funding enabled and organized by Projekt DEAL. This study was funded by the Medical Biodefense Research Program of the Bundeswehr Medical Service."