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Article
Multidisciplinary Sciences
Jessica A. Plante et al.
Summary: The D614G substitution in the SARS-CoV-2 spike protein enhances viral replication and infectivity in human lung epithelial cells, primary airway tissues, and hamsters. This variant may increase transmission in the upper respiratory tract and doesn't seem to significantly reduce vaccine efficacy. Further research on therapeutic antibodies targeting the circulating G614 virus is recommended.
Article
Microbiology
Drew Weissman et al.
Summary: The D614G mutation in the spike protein of SARS-CoV-2 is not expected to hinder current vaccine development, as viruses with the G614 spike are more susceptible to neutralization, indicating that the mutation may not affect vaccine efficacy.
CELL HOST & MICROBE
(2021)
Article
Multidisciplinary Sciences
Tyler N. Starr et al.
Summary: Research has found that mutations in the receptor binding domain (RBD) of SARS-CoV-2 may potentially escape the action of the REGN-COV2 cocktail, providing important information for interpreting mutations observed during viral surveillance.
Article
Multidisciplinary Sciences
Lewis F. Buss et al.
Summary: Research indicates that the attack rate of COVID-19 in Manaus, the capital of Amazonas state in northern Brazil, reached 66% in June 2020, rising to 76% by October, higher than the estimated attack rate of 29% in Sao Paulo, southeastern Brazil, during the same period.
Article
Cell Biology
Delphine Sterlin et al.
Summary: The study found that humoral immune responses to SARS-CoV-2 infection are dominated by IgA antibodies, with specific IgA plasmablasts rapidly expanding shortly after symptom onset and peaking in the third week of the disease. Virus-specific antibody responses include IgG, IgM, and IgA, with IgA playing a greater role in virus neutralization compared to IgG.
SCIENCE TRANSLATIONAL MEDICINE
(2021)
Article
Biochemistry & Molecular Biology
Emma C. Thomson et al.
Summary: SARS-CoV-2 virus can mutate and evade immunity, with mutations like N439K conferring resistance against neutralizing monoclonal antibodies and enhancing binding affinity to hACE2 receptor. Despite similar in vitro replication fitness and clinical outcomes compared to wild type, N439K mutation highlights the importance of ongoing molecular surveillance for guiding vaccine and therapeutic development and usage.
Article
Microbiology
Zhuoming Liu et al.
Summary: The study found that antibodies targeting the SARS-CoV-2 spike protein have escape mutations, different monoclonal antibodies have unique resistance profiles, some mutants are resistant to multiple antibodies while some variants can escape neutralization by convalescent sera. Comparing antibody-mediated mutations with circulating SARS-CoV-2 sequences revealed substitutions that may weaken neutralizing immune responses in some individuals, warranting further investigation.
CELL HOST & MICROBE
(2021)
Article
Microbiology
Allison J. Greaney et al.
Summary: The evolution of SARS-CoV-2 may impact the recognition of the virus by human antibody-mediated immunity, with mutations affecting antibody binding varying significantly among individuals and within the same individual over time. Despite this variability, mutations that greatly reduce antibody binding usually occur at specific sites in the RBD, with E484 being the most crucial. These findings can inform surveillance efforts for SARS-CoV-2 evolution in the future.
CELL HOST & MICROBE
(2021)
Article
Immunology
Ludivine Grzelak et al.
Summary: In a study of 308 healthcare workers with mild COVID-19, it was found that individuals over 50 years old and with a BMI over 25 kg/m(2) had higher levels of anti-S and anti-N antibodies in the first month. Between months 3-6, 99% of individuals had detectable anti-S antibodies, while 59% had anti-N antibodies. Additionally, anti-S and neutralizing antibodies declined faster in men compared to women, regardless of age and BMI.
JOURNAL OF INFECTIOUS DISEASES
(2021)
Editorial Material
Medicine, General & Internal
Ester C. Sabino et al.
Article
Multidisciplinary Sciences
Houriiyah Tegally et al.
Summary: The article describes a newly emerged lineage of SARS-CoV-2, 501Y.V2, characterized by eight mutations in the spike protein, which may result in increased transmissibility or immune escape. This lineage originated in South Africa and quickly became dominant in Eastern Cape, Western Cape, and KwaZuluNatal provinces within weeks.
Article
Multidisciplinary Sciences
Pengfei Wang et al.
Summary: The COVID-19 pandemic has had global repercussions, with promising vaccines and monoclonal antibody therapies. However, newly detected variants of SARS-CoV-2 present challenges to these treatment options.
Article
Multidisciplinary Sciences
Steven A. Kemp et al.
Summary: Chronic infection with SARS-CoV-2 can lead to viral evolution and increased resistance to neutralizing antibodies in immunosuppressed individuals treated with convalescent plasma. During convalescent plasma therapy, there were significant shifts in the viral population structure and sensitivity, suggesting strong selection pressure on the virus during treatment.
Article
Biochemistry & Molecular Biology
Constantinos Kurt Wibmer et al.
Summary: The SARS-CoV-2 virus in the B.1.351 variant discovered in South Africa can evade neutralization by most antibodies when expressed, but does not affect binding by convalescent plasma. This suggests the potential for reinfection with antigenically distinct variants and predicts reduced efficacy of spike-based vaccines.
Article
Biochemistry & Molecular Biology
Xuping Xie et al.
Summary: The study found that human sera from recipients of the BNT162b2 vaccine can neutralize SARS-CoV-2 viruses containing key spike mutations from the newly emerged UK and SA variants.
Article
Multidisciplinary Sciences
Kevin R. McCarthy et al.
Summary: The translation above discusses zoonotic pandemics caused by animal viruses spilling over into highly susceptible human populations, specifically focusing on the evolution of coronaviruses in human hosts and the impact of recurrent deletions in the spike glycoprotein on antibody epitopes. These studies help understand the antigenic evolution and adaptive evolution of SARS-CoV-2.
Article
Multidisciplinary Sciences
Alexander Muik et al.
Summary: A new SARS-CoV-2 lineage B.1.1.7 has emerged in the UK, which is more transmissible and faster spreading than other strains. However, a study found that the BNT162b2 vaccine offers largely preserved protection against the B.1.1.7 lineage, despite some reduced neutralizing titers.
Article
Cell Biology
Chloe Rees-Spear et al.
Summary: The study found that emerging variants of the coronavirus may lead to reduced neutralization by antibodies induced by vaccines or previous infection, but some samples still retain effectiveness. This highlights the importance of real-time monitoring of emerging mutations and their impact on vaccine efficacy.
Article
Multidisciplinary Sciences
Bas B. Oude Munnink et al.
Summary: Animal experiments have shown that various animals can be infected by SARS-CoV-2, with evidence of animal-to-human transmission within mink farms. Investigation into mink farm outbreaks revealed that the virus was initially introduced by humans and has since evolved, causing transmission between mink farms. Despite enhanced biosecurity measures and culling, transmission occurred between farms in three large clusters with unknown modes of transmission, resulting in a high percentage of infections among mink farm residents and employees.
Article
Biochemistry & Molecular Biology
Bette Korber et al.
Review
Microbiology
Gabriel Dagotto et al.
CELL HOST & MICROBE
(2020)
Article
Medicine, General & Internal
Samira Fafi-Kremer et al.
Article
Biochemistry & Molecular Biology
Leonid Yurkovetskiy et al.
Article
Multidisciplinary Sciences
Lihong Liu et al.
Article
Biochemistry & Molecular Biology
Julian Buchrieser et al.
Article
Multidisciplinary Sciences
Christopher O. Barnes et al.
Article
Cell Biology
Ludivine Grzelak et al.
SCIENCE TRANSLATIONAL MEDICINE
(2020)
Article
Biochemistry & Molecular Biology
Victoria A. Avanzato et al.
Article
Medicine, General & Internal
Fernando P. Polack et al.
NEW ENGLAND JOURNAL OF MEDICINE
(2020)
Article
Biology
Yiska Weisblum et al.
Article
Biochemical Research Methods
Valerie Lorin et al.
JOURNAL OF IMMUNOLOGICAL METHODS
(2015)
