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Page 1
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.
Sixteen novel lineages of SARS-CoV-2 in South Africa.
Tegally H, Wilkinson E, Lessells RJ, Giandhari J, Pillay S, Msomi N, Mlisana K, Bhiman JN, von Gottberg A, Walaza S, Fonseca V, Allam M, Ismail A, Glass AJ, Engelbrecht S, Van Zyl G, Preiser W, Williamson C, Petruccione F, Sigal A, Gazy I, Hardie D, Hsiao NY, Martin D, York D, Goedhals D, San EJ, Giovanetti M, Lourenço J, Alcantara LCJ, de Oliveira T. Tegally H, et al. Among authors: sigal a. Nat Med. 2021 Mar;27(3):440-446. doi: 10.1038/s41591-021-01255-3. Epub 2021 Feb 2. Nat Med. 2021. PMID: 33531709
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.
Multiple SARS-CoV-2 variants escape neutralization by vaccine-induced humoral immunity.
Garcia-Beltran WF, Lam EC, St Denis K, Nitido AD, Garcia ZH, Hauser BM, Feldman J, Pavlovic MN, Gregory DJ, Poznansky MC, Sigal A, Schmidt AG, Iafrate AJ, Naranbhai V, Balazs AB. Garcia-Beltran WF, et al. Among authors: sigal a. Cell. 2021 Apr 29;184(9):2372-2383.e9. doi: 10.1016/j.cell.2021.03.013. Epub 2021 Mar 12. Cell. 2021. PMID: 33743213 Free PMC article.
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.
Reduced antibody cross-reactivity following infection with B.1.1.7 than with parental SARS-CoV-2 strains.
Faulkner N, Ng KW, Wu MY, Harvey R, Margaritis M, Paraskevopoulou S, Houlihan C, Hussain S, Greco M, Bolland W, Warchal S, Heaney J, Rickman H, Spyer M, Frampton D, Byott M, de Oliveira T, Sigal A, Kjaer S, Swanton C, Gandhi S, Beale R, Gamblin SJ, McCauley JW, Daniels RS, Howell M, Bauer D, Nastouli E, Kassiotis G. Faulkner N, et al. Among authors: sigal a. Elife. 2021 Jul 29;10:e69317. doi: 10.7554/eLife.69317. Elife. 2021. PMID: 34323691 Free PMC article.
Similar Antibody Responses Against Severe Acute Respiratory Syndrome Coronavirus 2 in Individuals Living Without and With Human Immunodeficiency Virus on Antiretroviral Therapy During the First South African Infection Wave.
Snyman J, Hwa SH, Krause R, Muema D, Reddy T, Ganga Y, Karim F, Leslie A, Sigal A, Ndung'u T; COVID-19 Mechanisms and Multi-omics at the Intersection of TB and HIV in KwaZulu-Natal (COMMIT-KZN Team). Snyman J, et al. Among authors: sigal a. Clin Infect Dis. 2022 Aug 24;75(1):e249-e256. doi: 10.1093/cid/ciab758. Clin Infect Dis. 2022. PMID: 34472583 Free PMC article.
HIV status alters disease severity and immune cell responses in Beta variant SARS-CoV-2 infection wave.
Karim F, Gazy I, Cele S, Zungu Y, Krause R, Bernstein M, Khan K, Ganga Y, Rodel H, Mthabela N, Mazibuko M, Muema D, Ramjit D, Ndung'u T, Hanekom W, Gosnell B; COMMIT-KZN Team; Lessells RJ, Wong EB, de Oliveira T, Moosa MS, Lustig G, Leslie A, Kløverpris H, Sigal A. Karim F, et al. Among authors: sigal a. Elife. 2021 Oct 5;10:e67397. doi: 10.7554/eLife.67397. Elife. 2021. PMID: 34608862 Free PMC article.
Immunogenicity of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection and Ad26.CoV2.S Vaccination in People Living With Human Immunodeficiency Virus (HIV).
Khan K, Lustig G, Bernstein M, Archary D, Cele S, Karim F, Smith M, Ganga Y, Jule Z, Reedoy K, Miya Y, Mthabela N, Magula NP, Lessells R, de Oliveira T, Gosnell BI, Abdool Karim S, Garrett N, Hanekom W, Bekker LG, Gray G, Blackburn JM, Moosa MS, Sigal A; COMMIT-KZN Team. Khan K, et al. Among authors: sigal a. Clin Infect Dis. 2022 Aug 24;75(1):e857-e864. doi: 10.1093/cid/ciab1008. Clin Infect Dis. 2022. PMID: 34893824 Free PMC article.
221 results