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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. medRxiv [Preprint]. 2021 Mar 12:2021.02.14.21251704. doi: 10.1101/2021.02.14.21251704. medRxiv. 2021. PMID: 33619506 Free PMC article. Updated. Preprint.
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.
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.
T cell derived HIV-1 is present in the CSF in the face of suppressive antiretroviral therapy.
Lustig G, Cele S, Karim F, Derache A, Ngoepe A, Khan K, Gosnell BI, Moosa MS, Ntshuba N, Marais S, Jeena PM, Govender K, Adamson J, Kløverpris H, Gupta RK, Harrichandparsad R, Patel VB, Sigal A. Lustig G, et al. Among authors: sigal a. PLoS Pathog. 2021 Sep 23;17(9):e1009871. doi: 10.1371/journal.ppat.1009871. eCollection 2021 Sep. PLoS Pathog. 2021. PMID: 34555123 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.
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.
213 results