Browsing Research Articles (Internal Medicine) by Author "Ayres, Frances"

Browsing Research Articles (Internal Medicine) by Author "Ayres, Frances"

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  • Ad26.COV2.S breakthrough infections induce high titers of neutralizing antibodies against Omicron and other SARS-CoV-2 variants of concern 
    Kitchin, Dale; Richardson, Simone I.; Van der Mescht, Mieke Adri; Motlou, Thopisang; Mzindle, Nonkululeko; Moyo-Gwete, Thandeka; Makhado, Zanele; Ayres, Frances; Manamela, Nelia P.; Spencer, Holly; Lambson, Bronwen; Oosthuysen, Brent; Kaldine, Haajira; Du Pisanie, Marizane; Mennen, Mathilda; Skelem, Sango; Williams, Noleen; Ntusi, Ntobeko A.B.; Burgers, Wendy A.; Gray, Glenda G.; Bekker, Linda-Gail; Boswell, Michael T.; Rossouw, Theresa M.; Ueckermann, Veronica; Moore, Penny L. (Cell Press, 2022-03-15)
    The Janssen (Johnson & Johnson) Ad26.COV2.S non-replicating viral vector vaccine has been widely deployed for COVID-19 vaccination programs in resource-limited settings. Here we confirm that neutralizing and binding ...
  • Cross-reactive neutralizing antibody responses elicited by SARS-CoV-2 501Y.V2 (B.1.351) 
    Moyo‑Gwete, Thandeka; Madzivhandila, Mashudu; Makhado, Zanele; Ayres, Frances; Mhlanga, Donald; Oosthuysen, Brent; Lambson, Bronwen E.; Kgagudi, Prudence; Tegally, Houriiyah; Iranzadeh, Arash; Doolabh, Deelan; Tyers, Lynn; Chinhoyi, Lionel R.; Mennen, Mathilda; Skelem, Sango; Marais, Gert; Wibmer, Constantinos K.; Bhiman, Jinal N.; Ueckermann, Veronica; Rossouw, Theresa M.; Boswell, Michael T.; De Oliveira, Tulio (Massachusetts Medical Society, 2021-06)
    No abstract available.
  • SARS-CoV-2 501Y.V2 escapes neutralization by South African COVID-19 donor plasma 
    Wibmer, Constantinos Kurt; Ayres, Frances; Hermanus, Tandile; Madzivhandila, Mashudu; Kgagudi, Prudence; Oosthuysen, Brent; Lambson, Bronwen E.; De Oliveira, Tulio; Vermeulen, Marion; Van der Berg, Karin; Rossouw, Theresa M.; Boswell, Michael T.; Ueckermann, Veronica; Meiring, Susan; Von Gottberg, Anne; Cohen, Cheryl; Morris, Lynn; Bhiman, Jinal N.; Moore, Penny L. (Springer, 2021-04)
    SARS-CoV-2 501Y.V2 (B.1.351), a novel lineage of coronavirus causing COVID-19, contains substitutions in two immunodominant domains of the spike protein. Here, we show that pseudovirus expressing 501Y.V2 spike protein ...
  • SARS-CoV-2 Beta and Delta variants trigger Fc effector function with increased cross-reactivity 
    Richardson, Simone I.; Manamela, Nelia P.; Motsoeneng, Boitumelo M.; Kaldine, Haajira; Ayres, Frances; Makhado, Zanele; Mennen, Mathilda; Skelem, Sango; Williams, Noleen; Sullivan, Nancy J.; Misasi, John; Gray, Glenda G.; Bekker, Linda‑Gail; Ueckermann, Veronica; Rossouw, Theresa M.; Boswell, M.T.; Ntusi, Ntobeko A.B.; Burgers, Wendy A.; Moore, Penny L. (Cell Press, 2022-02-15)
    Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) variants of concern (VOCs) exhibit escape from neutralizing antibodies, causing concern about vaccine effectiveness. However, while non-neutralizing cytotoxic ...