Kleintje66 schreef op 23 juni 2021 16:59:
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"Although we focus here on the appearance and expansion of S: 677H/P mutants in the United States, global analyses reveal that 677H mutants have arisen multiple times elsewhere in the world as well, including large clusters of 677H mutants in Egypt and Denmark, and multiple clusters in India (Emma B. Hodcroft, 2021). Furthermore, a newly designated, emergent PANGO lineage, B.1.525, carries S: Q677H in addition to several mutations seen in B.1.1.7 (501Y.V1), such as S: del 69-70 and S: del 144, and also, S: E484K (Rambaut et al., 2020; Áine O’Toole, 2021). Remarkably, a 19B cluster harboring the ostensibly less fit, ‘ancestral’ D614 Spike, which has been circulating at =2% of global frequency since August 2020, recently resurfaced as a newly re-emergent lineage carrying N501Y together with 677H (Wagner, 2021). N501Y is therefore notably found in all three of the ‘variants of concern’ (Tegally et al., 2020; Faria et al., 2021; Lauring and Hodcroft, 2021; Naveca, Nascimento, et al., 2021; Volz, Mishra, et al., 2021). Acknowledging this observation is circumstantial, it further suggests that the 677H mutation may confer an evolutionary advantage to SARS-CoV-2."
www.scienceopen.com/document_file/628...Het blijven dus vaak verschillende virussen maar de mutatie duikt vaker op.