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SARS-CoV-2 Omicron variant emerged under immune selection.
Tan CW, Chia WN, Zhu F, Young BE, Chantasrisawad N, Hwa SH, Yeoh AY, Lim BL, Yap WC, Pada SKMS, Tan SY, Jantarabenjakul W, Toh LK, Chen S, Zhang J, Mah YY, Chen VC, Chen MI, Wacharapluesadee S, Sigal A, Putcharoen O, Lye DC, Wang LF. Tan CW, et al. Among authors: sigal a. Nat Microbiol. 2022 Nov;7(11):1756-1761. doi: 10.1038/s41564-022-01246-1. Epub 2022 Oct 4. Nat Microbiol. 2022. PMID: 36195753
Detection of a SARS-CoV-2 variant of concern in South Africa.
Tegally H, Wilkinson E, Giovanetti M, Iranzadeh A, Fonseca V, Giandhari J, Doolabh D, Pillay S, San EJ, Msomi N, Mlisana K, von Gottberg A, Walaza S, Allam M, Ismail A, Mohale T, Glass AJ, Engelbrecht S, Van Zyl G, Preiser W, Petruccione F, Sigal A, Hardie D, Marais G, Hsiao NY, Korsman S, Davies MA, Tyers L, Mudau I, York D, Maslo C, Goedhals D, Abrahams S, Laguda-Akingba O, Alisoltani-Dehkordi A, Godzik A, Wibmer CK, Sewell BT, Lourenço J, Alcantara LCJ, Kosakovsky Pond SL, Weaver S, Martin D, Lessells RJ, Bhiman JN, Williamson C, de Oliveira T. Tegally H, et al. Among authors: sigal a. Nature. 2021 Apr;592(7854):438-443. doi: 10.1038/s41586-021-03402-9. Epub 2021 Mar 9. Nature. 2021. PMID: 33690265
Efficacy of the ChAdOx1 nCoV-19 Covid-19 Vaccine against the B.1.351 Variant.
Madhi SA, Baillie V, Cutland CL, Voysey M, Koen AL, Fairlie L, Padayachee SD, Dheda K, Barnabas SL, Bhorat QE, Briner C, Kwatra G, Ahmed K, Aley P, Bhikha S, Bhiman JN, Bhorat AE, du Plessis J, Esmail A, Groenewald M, Horne E, Hwa SH, Jose A, Lambe T, Laubscher M, Malahleha M, Masenya M, Masilela M, McKenzie S, Molapo K, Moultrie A, Oelofse S, Patel F, Pillay S, Rhead S, Rodel H, Rossouw L, Taoushanis C, Tegally H, Thombrayil A, van Eck S, Wibmer CK, Durham NM, Kelly EJ, Villafana TL, Gilbert S, Pollard AJ, de Oliveira T, Moore PL, Sigal A, Izu A; NGS-SA Group; Wits-VIDA COVID Group. Madhi SA, et al. Among authors: sigal a. N Engl J Med. 2021 May 20;384(20):1885-1898. doi: 10.1056/NEJMoa2102214. Epub 2021 Mar 16. N Engl J Med. 2021. PMID: 33725432 Free PMC article. Clinical Trial.
Escape of SARS-CoV-2 501Y.V2 from neutralization by convalescent plasma.
Cele S, Gazy I, Jackson L, Hwa SH, Tegally H, Lustig G, Giandhari J, Pillay S, Wilkinson E, Naidoo Y, Karim F, Ganga Y, Khan K, Bernstein M, Balazs AB, Gosnell BI, Hanekom W, Moosa MS; Network for Genomic Surveillance in South Africa; COMMIT-KZN Team; Lessells RJ, de Oliveira T, Sigal A. Cele S, et al. Among authors: sigal a. Nature. 2021 May;593(7857):142-146. doi: 10.1038/s41586-021-03471-w. Epub 2021 Mar 29. Nature. 2021. PMID: 33780970 Free PMC article.
Two doses of SARS-CoV-2 vaccination induce robust immune responses to emerging SARS-CoV-2 variants of concern.
Skelly DT, Harding AC, Gilbert-Jaramillo J, Knight ML, Longet S, Brown A, Adele S, Adland E, Brown H; Medawar Laboratory Team; Tipton T, Stafford L, Mentzer AJ, Johnson SA, Amini A; OPTIC (Oxford Protective T cell Immunology for COVID-19) Clinical Group; Tan TK, Schimanski L, Huang KA, Rijal P; PITCH (Protective Immunity T cells in Health Care Worker) Study Group; C-MORE/PHOSP-C Group; Frater J, Goulder P, Conlon CP, Jeffery K, Dold C, Pollard AJ, Sigal A, de Oliveira T, Townsend AR, Klenerman P, Dunachie SJ, Barnes E, Carroll MW, James WS. Skelly DT, et al. Among authors: sigal a. Nat Commun. 2021 Aug 17;12(1):5061. doi: 10.1038/s41467-021-25167-5. Nat Commun. 2021. PMID: 34404775 Free PMC article.
SARS-CoV-2 Omicron has extensive but incomplete escape of Pfizer BNT162b2 elicited neutralization and requires ACE2 for infection.
Cele S, Jackson L, Khoury DS, Khan K, Moyo-Gwete T, Tegally H, San JE, Cromer D, Scheepers C, Amoako D, Karim F, Bernstein M, Lustig G, Archary D, Smith M, Ganga Y, Jule Z, Reedoy K, Hwa SH, Giandhari J, Blackburn JM, Gosnell BI, Abdool Karim SS, Hanekom W; NGS-SA; COMMIT-KZN Team; von Gottberg A, Bhiman J, Lessells RJ, Moosa MS, Davenport MP, de Oliveira T, Moore PL, Sigal A. Cele S, et al. Among authors: sigal a. medRxiv [Preprint]. 2021 Dec 17:2021.12.08.21267417. doi: 10.1101/2021.12.08.21267417. medRxiv. 2021. PMID: 34909788 Free PMC article. Updated. Preprint.
SARS-CoV-2 evolved during advanced HIV disease immunosuppression has Beta-like escape of vaccine and Delta infection elicited immunity.
Cele S, Karim F, Lustig G, San JE, Hermanus T, Tegally H, Snyman J, Moyo-Gwete T, Wilkinson E, Bernstein M, Khan K, Hwa SH, Tilles SW, Singh L, Giandhari J, Mthabela N, Mazibuko M, Ganga Y, Gosnell BI, Karim SA, Hanekom W, Van Voorhis WC, Ndung'u T; COMMIT-KZN Team; Lessells RJ, Moore PL, Moosa MS, de Oliveira T, Sigal A. Cele S, et al. Among authors: sigal a. medRxiv [Preprint]. 2021 Dec 7:2021.09.14.21263564. doi: 10.1101/2021.09.14.21263564. medRxiv. 2021. PMID: 34909798 Free PMC article. Updated. Preprint.
Aggregated Mycobacterium tuberculosis Enhances the Inflammatory Response.
Rodel HE, Ferreira IATM, Ziegler CGK, Ganga Y, Bernstein M, Hwa SH, Nargan K, Lustig G, Kaplan G, Noursadeghi M, Shalek AK, Steyn AJC, Sigal A. Rodel HE, et al. Among authors: sigal a. Front Microbiol. 2021 Dec 2;12:757134. doi: 10.3389/fmicb.2021.757134. eCollection 2021. Front Microbiol. 2021. PMID: 34925266 Free PMC article.
Omicron extensively but incompletely escapes Pfizer BNT162b2 neutralization.
Cele S, Jackson L, Khoury DS, Khan K, Moyo-Gwete T, Tegally H, San JE, Cromer D, Scheepers C, Amoako DG, Karim F, Bernstein M, Lustig G, Archary D, Smith M, Ganga Y, Jule Z, Reedoy K, Hwa SH, Giandhari J, Blackburn JM, Gosnell BI, Abdool Karim SS, Hanekom W; NGS-SA; COMMIT-KZN Team; von Gottberg A, Bhiman JN, Lessells RJ, Moosa MS, Davenport MP, de Oliveira T, Moore PL, Sigal A. Cele S, et al. Among authors: sigal a. Nature. 2022 Feb;602(7898):654-656. doi: 10.1038/s41586-021-04387-1. Epub 2021 Dec 23. Nature. 2022. PMID: 35016196 Free PMC article.
T cell responses to SARS-CoV-2 spike cross-recognize Omicron.
Keeton R, Tincho MB, Ngomti A, Baguma R, Benede N, Suzuki A, Khan K, Cele S, Bernstein M, Karim F, Madzorera SV, Moyo-Gwete T, Mennen M, Skelem S, Adriaanse M, Mutithu D, Aremu O, Stek C, du Bruyn E, Van Der Mescht MA, de Beer Z, de Villiers TR, Bodenstein A, van den Berg G, Mendes A, Strydom A, Venter M, Giandhari J, Naidoo Y, Pillay S, Tegally H, Grifoni A, Weiskopf D, Sette A, Wilkinson RJ, de Oliveira T, Bekker LG, Gray G, Ueckermann V, Rossouw T, Boswell MT, Bhiman JN, Moore PL, Sigal A, Ntusi NAB, Burgers WA, Riou C. Keeton R, et al. Among authors: sigal a. Nature. 2022 Mar;603(7901):488-492. doi: 10.1038/s41586-022-04460-3. Epub 2022 Jan 31. Nature. 2022. PMID: 35102311 Free PMC article.
212 results