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. 2021 Oct 14:1–19. doi: 10.1080/07391102.2021.1989036

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This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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graphic file with name TBSD_A_1989036_F0008a_C.jpg — SASA analysis for 6vwl-Complexes (Blue), spike 6vwl-Complexes (Red), 1P8J-Complexes (gray) and 1R42-Complexe (yellow).

graphic file with name TBSD_A_1989036_F0008b_C.jpg — SASA analysis for 6vwl-Complexes (Blue), spike 6vwl-Complexes (Red), 1P8J-Complexes (gray) and 1R42-Complexe (yellow).