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Showing 1–11 of 11 results
Advanced filters: Author: Darren Sigal Clear advanced filters

  • The spike protein of the Omicron variant of SARS-CoV-2 has a higher affinity for ACE2 than Delta, and a marked change in its antigenicity increases Omicron’s evasion of therapeutic and vaccine-elicited neutralizing antibodies.

    • Bo Meng
    • Adam Abdullahi
    • Ravindra K. Gupta
    ResearchOpen Access
    Nature
    Volume: 603, P: 706-714

  • Turajlic and colleagues assess longitudinal antibody and cellular immune responses against SARS-CoV-2 variants of concern in patients with cancer, following either recovery from SARS-CoV-2 infection or vaccination, in two back-to-back reports from the CAPTURE study.

    • Annika Fendler
    • Scott T. C. Shepherd
    • Samra Turajlic
    ResearchOpen Access
    Nature Cancer
    Volume: 2, P: 1305-1320

  • Cross-neutralization assays of early variants and the 501Y.V2 variant of SARS-CoV-2 show that plasma from individuals infected with 501Y.V2 effectively neutralizes all variants, indicating that a vaccine that targets 501Y.V2 may also be effective against other SARS-CoV-2 variants.

    • Sandile Cele
    • Inbal Gazy
    • Alex Sigal
    Research
    Nature
    Volume: 593, P: 142-146

  • The SARS-CoV-2 PANGO lineage C.1.2 has been under monitoring by global health authorities as it has spread worldwide. Here, Bhiman and colleagues characterise the emergence of the lineage, and its neutralisation sensitivity using data from vaccinees and previously infected individuals.

    • Cathrine Scheepers
    • Josie Everatt
    • Jinal N. Bhiman
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-9

  • Plasma from individuals vaccinated with BNT162b2 exhibits 22-fold less neutralization capacity against Omicron (B.1.1.529) than against an ancestral SARS-CoV-2 strain but residual neutralization is maintained in those with high levels of neutralization of ancestral virus.

    • Sandile Cele
    • Laurelle Jackson
    • Alex Sigal
    ResearchOpen Access
    Nature
    Volume: 602, P: 654-656

  • The 501Y.V2 variant of SARS-CoV-2 in South Africa became dominant over other variants within weeks of its emergence, suggesting that this variant is linked to increased transmissibility or immune escape.

    • Houriiyah Tegally
    • Eduan Wilkinson
    • Tulio de Oliveira
    Research
    Nature
    Volume: 592, P: 438-443

  • In this study, the authors provide a global overview of SARS-CoV-2 genome sequencing, and estimate the proportion of cases sequenced and time to genome upload. They identify disparities and highlight the need to strengthen surveillance in lower and middle income countries.

    • Anderson F. Brito
    • Elizaveta Semenova
    • Nuno R. Faria
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-13

  • Interrogation of 1,365 near whole-genome sequences of SARS-CoV-2 variants isolated in South Africa during the first 6 months of the global pandemic reveals three major monophyletic lineages responsible for more than half of the infections in the country and underscores the value of integrating genomic surveillance methods to inform the national pandemic response.

    • Houriiyah Tegally
    • Eduan Wilkinson
    • Tulio de Oliveira
    Research
    Nature Medicine
    Volume: 27, P: 440-446

  • The ability to characterize the cellular composition and spatial organization of the tumor microenvironment has been limited by the techniques available to image the necessary number of biomarkers for broad phenotyping at a subcellular resolution. This study demonstrates the capabilities of Multiplexed Ion Beam Imaging (MIBI) for cell phenotype identification and their spatial relationships across multiple tumor types.

    • Jason Ptacek
    • Darren Locke
    • Jessica Finn
    Research
    Laboratory Investigation
    Volume: 100, P: 1111-1123