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Articles by G Gray
Analysis of adverse events following COVID-19 vaccination and infection: A retrospective, comparative cohort study using a claims database from Discovery Health, a managed care organisation in South Africa
License Copyright (c) 2026 K Bernhardt, S Collie, D W C Jacobs, P Mekgwe, G Gray, J Peter, L-G Bekker This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. The SAMJ is published under an Attribution-Non Commercial International Creative Commons Attribution (CC-BY-NC 4.0) License. Under this license, authors agree to make articles available to users, without permission or fees, for any lawful, non-commercial purpose.
Defining Breast Epithelial Cell Types in the Single-Cell Era
Faculty, Staff and Student Publications Publication Date 9-8-2025 Journal Developmental Cell DOI 10.1016/j.devcel.2025.06.032 PubMedCentral® Posted Date 9-8-2026 PubMedCentral® Full Text Version Author MSS Abstract Single-cell studies on breast tissue have contributed to a change in our understanding of breast epithelial diversity that has, in turn, precipitated a lack of consensus on breast cell types.
Clot twist - D-dimer analysis of healthy adults receiving heterologous or homologous booster COVID-19 vaccine after a single prime dose of Ad26.COV2.S in a phase II randomised open-label trial, BaSiS | South African Medical Journal
License Copyright (c) 2025 F Patel, J le Roux, S Sawry, R Kieser , M Dhar , K Gill, E Lazarus, A Nana, N Garrett, P L Moore, A Sigal, G Gray , H V Rees, B F Jacobson, L Fairlie This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. The SAMJ is published under an Attribution-Non Commercial International Creative Commons Attribution (CC-BY-NC 4.0) License.
DOI: https://doi.org/10.7196/ Keywords: COVID-19, SARS-CoV-2, vaccine effectiveness, Ad26.COV2.S vaccine, variants of concern, ancestral vaccine, heterologous boosting, homologous boosting, South Africa, Sisonke study, health workers References References Maslo, C., et al., Characteristics and Outcomes of Hospitalized Patients in South Africa During the COVID-19 Omicron Wave Compared With Previous Waves. JAMA, 2022. 327(6): p. 583-584. Abdullah, F., et al., Decreased severity of disease...
Dodgy vapes
I am writing in reply to Will Parker of HMP Durham, and Charly of HMP Low Moss, regarding the very low quality of 88vapes. This seems to be a recurring problem across the prison system. Apparently, the correct procedure is to submit a COMP1 prisoner’s complaint form and a Canteen Item Refund form, highlighting your complaint, together with the low quality/damaged vapes.
COVID-19 lockdowns in low- and middle-income countries: Success against COVID-19 at the price of greater costs
Home > Vol 110, No 8 (2020) > Madhi The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader). If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs. Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader.
The Scientists’ Collective 10-point proposal for equitable and timeous access to COVID-19 vaccine in South Africa
Home > Online First: COVID-19 in South Africa > Gray The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader). If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs. Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader.
The Scientists’ Collective 10-point proposal for equitable and timeous access to COVID-19 vaccine in South Africa
The Scientists’ Collective 10-point proposal for equitable and timeous access to COVID-19 vaccine in South Africa G Gray, A van der Heever, S S Madhi, J McIntyre, B Kana, W Stevens, I Sanne, G Richards, F Abdullah, M Mendelson, A Dasoo, J Nel, A Wulfsohn, L Blumberg, F Venter Authors' affiliations G Gray, South African Medical Research Council A van der Heever, Wits School of Governance, University of the Witwatersrand, Johannesburg S S Madhi, MRC Vaccines and Infectious Diseases Analytics...
COVID-19 lockdowns in low- and middle-income countries: Success against COVID-19 at the price of greater costs
COVID-19 lockdowns in low- and middle-income countries: Success against COVID-19 at the price of greater costs Authors' affiliations S A Madhi, University of the Witwatersrand, Johannesburg, South Africa G E Gray, South African Medical Research Council, Cape Town, South Africa N Ismail, National Institute for Communicable Diseases, Johannesburg, South Africa A Izu, University of the Witwatersrand, Johannesburg, South Africa M Mendelson, Groote Schuur Hospital and University of Cape Town,...
The utility of 2009 H1N1 pandemic data in understanding the transmission potential and estimating the burden of COVID-19 in South Africa to guide mitigation strategies
The utility of 2009 H1N1 pandemic data in understanding the transmission potential and estimating the burden of COVID-19 in South Africa to guide mitigation strategies N Phaswana-Mafuya, O Shisana, G Gray, N Zungu, L-G Bekker, L Kuonza, K Zuma, S Baral Authors' affiliations N Phaswana-Mafuya, Deputy Vice Chancellor, Research and Innovation Office, North West University, Potchefstroom, South Africa O Shisana, Evidence Based Solutions, Cape Town, South Africa; Department of Psychiatry and...
Quality Leather Bucket Bag for Ladies
Wrapped in our luxurious signature tissue paper, tucked into a beautiful keepsake box and lovingly covered in stylish gift wrap, your luxury leather product from Maxwell - Scott will be perfectly presented for your loved one. We finish each gift-wrapped product with a length of stunning white ribbon and a small gift card with space for you to write your own personal message inside.
4 Ways You May Be Sabotaging Your Relationship - JetMag.com
Signs that you may be cutting love off before it even has a chance to begin... By G Gray You’re in your living room watching a movie, enjoying some wine and relaxing with the person you’ve been dating for five months. He’s fine, sweet and life is good. A question turns into a disagreement that then evolves into an argument which then morphs into a mudslinging contest.
Over 30 & Childless? Here Comes the Speculation
The message has been ingrained and woven into our psyches as the norm. If by the age of 30, the region you live in can add or subtract some years to this number, you don’t have both of these things in place, or are well on your way to them, folks start to get nervous and question your womanhood. As little girls, we were given baby dolls fully equipped with plastic bottles of fake milk and fluorescent orange juice-like substances. Don’t forget the baby strollers.
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