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Escape from recognition of SARS-CoV-2 variant spike epitopes but overall preservation of T cell immunity.
Riou C, Keeton R, Moyo-Gwete T, Hermanus T, Kgagudi P, Baguma R, Valley-Omar Z, Smith M, Tegally H, Doolabh D, Iranzadeh A, Tyers L, Mutavhatsindi H, Tincho MB, Benede N, Marais G, Chinhoyi LR, Mennen M, Skelem S, du Bruyn E, Stek C; South African cellular immunity network; de Oliveira T, Williamson C, Moore PL, Wilkinson RJ, Ntusi NAB, Burgers WA. Riou C, et al. Among authors: valley omar z. Sci Transl Med. 2022 Feb 9;14(631):eabj6824. doi: 10.1126/scitranslmed.abj6824. Epub 2022 Feb 9. Sci Transl Med. 2022. PMID: 34931886 Free PMC article.
Reduced amplification efficiency of the RNA-dependent-RNA-polymerase target enables tracking of the Delta SARS-CoV-2 variant using routine diagnostic tests.
Valley-Omar Z, Marais G, Iranzadeh A, Naidoo M, Korsman S, Maponga T, Hussey H, Davies MA, Boulle A, Doolabh D, Laubscher M, Wojno J, Deetlefs JD, Maritz J, Scott L, Msomi N, Naicker C, Tegally H, de Oliveira T, Bhiman J, Williamson C, Preiser W, Hardie D, Hsiao NY. Valley-Omar Z, et al. J Virol Methods. 2022 Apr;302:114471. doi: 10.1016/j.jviromet.2022.114471. Epub 2022 Jan 18. J Virol Methods. 2022. PMID: 35051442 Free PMC article.
Assessing the clinical severity of the Omicron variant in the Western Cape Province, South Africa, using the diagnostic PCR proxy marker of RdRp target delay to distinguish between Omicron and Delta infections - a survival analysis.
Hussey H, Davies MA, Heekes A, Williamson C, Valley-Omar Z, Hardie D, Korsman S, Doolabh D, Preiser W, Maponga T, Iranzadeh A, Wasserman S, Boloko L, Symons G, Raubenheimer P, Parker A, Schrueder N, Solomon W, Rousseau P, Wolter N, Jassat W, Cohen C, Lessells R, Wilkinson RJ, Boulle A, Hsiao NY. Hussey H, et al. Among authors: valley omar z. Int J Infect Dis. 2022 May;118:150-154. doi: 10.1016/j.ijid.2022.02.051. Epub 2022 Feb 27. Int J Infect Dis. 2022. PMID: 35235826 Free PMC article.
Clinical metagenomics in a resource-limited setting.
Marais G, Valley-Omar Z, Marais S, McMullen K, Bateman K, der Westhuizen DV, Maseko M, Hardie D, Brink A. Marais G, et al. Among authors: valley omar z. J Infect. 2023 Dec;87(6):604-606. doi: 10.1016/j.jinf.2023.10.007. Epub 2023 Oct 17. J Infect. 2023. PMID: 37852478 No abstract available.
Higher mortality associated with the SARS-CoV-2 Delta variant in the Western Cape, South Africa, using RdRp target delay as a proxy: a cross-sectional study.
Hussey H, Davies MA, Heekes A, Williamson C, Valley-Omar Z, Hardie D, Korsman S, Doolabh D, Preiser W, Maponga T, Iranzadeh A, Engelbrecht S, Wasserman S, Schrueder N, Boloko L, Symons G, Raubenheimer P, Viljoen A, Parker A, Cohen C, Jasat W, Lessells R, Wilkinson RJ, Boulle A, Hsiao M. Hussey H, et al. Among authors: valley omar z. Gates Open Res. 2022 Aug 31;6:117. doi: 10.12688/gatesopenres.13654.1. eCollection 2022. Gates Open Res. 2022. PMID: 37994361 Free PMC article.
Human surveillance and phylogeny of highly pathogenic avian influenza A(H5N8) during an outbreak in poultry in South Africa, 2017.
Valley-Omar Z, Cloete A, Pieterse R, Walaza S, Salie-Bassier Y, Smith M, Govender N, Seleka M, Hellferscee O, Mtshali PS, Allam M, Ismail A, Anthony T, Seutloali M, McCarthy K, van Helden L, Cohen C, Treurnicht FK. Valley-Omar Z, et al. Influenza Other Respir Viruses. 2020 May;14(3):266-273. doi: 10.1111/irv.12724. Epub 2020 Feb 14. Influenza Other Respir Viruses. 2020. PMID: 32058677 Free PMC article.
21 results