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Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 mBio 2020 ; 11 (4): ä Nephropedia Template TP
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Discovery and Genomic Characterization of a 382-Nucleotide Deletion in ORF7b and ORF8 during the Early Evolution of SARS-CoV-2 #MMPMID32694143
Su YCF; Anderson DE; Young BE; Linster M; Zhu F; Jayakumar J; Zhuang Y; Kalimuddin S; Low JGH; Tan CW; Chia WN; Mak TM; Octavia S; Chavatte JM; Lee RTC; Pada S; Tan SY; Sun L; Yan GZ; Maurer-Stroh S; Mendenhall IH; Leo YS; Lye DC; Wang LF; Smith GJD
mBio 2020[Jul]; 11 (4): ä PMID32694143show ga
During the SARS epidemic in 2003/2004, a number of deletions were observed in ORF8 of SARS-CoV, and eventually deletion variants became predominant, leading to the hypothesis that ORF8 was an evolutionary hot spot for adaptation of SARS-CoV to humans. However, due to the successful control of the SARS epidemic, the importance of these deletions for the epidemiological fitness of SARS-CoV in humans could not be established. The emergence of multiple SARS-CoV-2 strains with ORF8 deletions, combined with evidence of a robust immune response to ORF8, suggests that the lack of ORF8 may assist with host immune evasion. In addition to providing a key insight into the evolutionary behavior of SARS-CoV-2 as the virus adapts to its new human hosts, the emergence of ORF8 deletion variants may also impact vaccination strategies.