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Relatively rapid evolution rates of SARS-CoV-2 spike gene at the primary stage of massive vaccination
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作者 Jing Yang Min Han +8 位作者 Liang Wang Likui Wang Tianrui Xu Linhuan Wu Juncai Ma Gary Wong Wenjun Liu George F.Gao Yuhai Bi 《Biosafety and Health》 CSCD 2022年第4期228-233,共6页
A series of stringent non-pharmacological and pharmacological interventions were implemented to contain the pandemic but the pandemic continues.Moreover,vaccination breakthrough infection and reinfection in convalesce... A series of stringent non-pharmacological and pharmacological interventions were implemented to contain the pandemic but the pandemic continues.Moreover,vaccination breakthrough infection and reinfection in convalescent coronavirus disease 2019(COVID-19)cases have been reported.Further,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)variants emerged with mutations in spike(S)gene,the target of most current vaccines.Importantly,the mutations exhibit a trend of immune escape from the vaccination.Herein the scientific question that if the vaccination drives genetic or antigenic drifts of SARS-CoV-2 remains elusive.We performed correlation analyses to uncover the impacts of wide vaccination on epidemiological characteristics of COVID-19.In addition,we investigated the evolutionary dynamics and genetic diversity of SARS-CoV-2 under immune pressure by utilizing the Bayesian phylodynamic inferences and the lineage entropy calculation respectively.We found that vaccination coverage was negatively related to the infections,severe cases,and deaths of COVID-19 respectively.With the increasing vaccination coverage,the lineage diversity of SARS-CoV-2 dampened,but the rapid mutation rates of the S gene were identified,and the vaccination could be one of the explanations for driving mutations in S gene.Moreover,new epidemics resurged in several countries with high vaccination coverage,questioning their current pandemic control strategies.Hence,integrated vaccination and non-pharmacological interventions are critical to control the pandemic.Furthermore,novel vaccine preparation should enhance its capabilities to curb both disease severity and infection possibility. 展开更多
关键词 SARS-CoV-2 VACCINE Genetic evolution Genetic drift Antigenic drift lineage divergence Epidemiological characteristics
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