K
Karla Diaz-Ordaz
Researcher at University of London
Publications - 86
Citations - 4871
Karla Diaz-Ordaz is an academic researcher from University of London. The author has contributed to research in topics: Missing data & Population. The author has an hindex of 18, co-authored 74 publications receiving 2700 citations. Previous affiliations of Karla Diaz-Ordaz include Imperial College London & Queen Mary University of London.
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Journal ArticleDOI
Estimated transmissibility and impact of SARS-CoV-2 lineage B.1.1.7 in England.
Nicholas G Davies,Sam Abbott,Rosanna C. Barnard,Christopher I Jarvis,Adam J. Kucharski,James D Munday,Carl A. B. Pearson,Timothy W Russell,Damien C. Tully,Alex D. Washburne,Tom Wenseleers,Amy Gimma,William Waites,Kerry L. M. Wong,Kevin van Zandvoort,Justin D. Silverman,Karla Diaz-Ordaz,Ruth H. Keogh,Rosalind M Eggo,Sebastian Funk,Mark Jit,Katherine E. Atkins,Katherine E. Atkins,W. John Edmunds +23 more
TL;DR: Using a variety of statistical and dynamic modeling approaches, the authors estimate that this variant has a 43 to 90% (range of 95% credible intervals, 38 to 130%) higher reproduction number than preexisting variants, and a fitted two-strain dynamic transmission model shows that VOC 202012/01 will lead to large resurgences of COVID-19 cases.
Journal ArticleDOI
Increased mortality in community-tested cases of SARS-CoV-2 lineage B.1.1.7.
Nicholas G Davies,Christopher I Jarvis,W. John Edmunds,Nicholas P. Jewell,Karla Diaz-Ordaz,Ruth H. Keogh +5 more
TL;DR: In this paper, the authors analyzed a dataset that links 2.245,263 positive SARS-CoV-2 community tests and 17,452 deaths associated with COVID-19 in England from 1 November 2020 to 14 February 2021.
Journal ArticleDOI
Living risk prediction algorithm (QCOVID) for risk of hospital admission and mortality from coronavirus 19 in adults: national derivation and validation cohort study.
Ash Kieran Clift,Carol Coupland,Ruth H. Keogh,Karla Diaz-Ordaz,Elizabeth A. Williamson,Ewen M Harrison,Andrew Hayward,Harry Hemingway,Peter Horby,Nisha Mehta,Jonathan Benger,Kamlesh Khunti,David Spiegelhalter,Aziz Sheikh,Jonathan Valabhji,Ronan A Lyons,John Robson,Malcolm G Semple,Frank Kee,Peter Johnson,Susan A. Jebb,T. J. Williams,Julia Hippisley-Cox +22 more
TL;DR: The QCOVID population based risk algorithm performed well, showing very high levels of discrimination for deaths and hospital admissions due to covid-19, and has the potential to be dynamically updated as the pandemic evolves.
Posted ContentDOI
Estimated transmissibility and severity of novel SARS-CoV-2 Variant of Concern 202012/01 in England
Nicholas G Davies,Sam Abbott,Rosanna C. Barnard,Christopher I Jarvis,Adam J. Kucharski,James D Munday,Carl A. B. Pearson,Timothy W Russell,Damien C. Tully,Alex D. Washburne,Tom Wenseleers,Amy Gimma,William Waites,Kerry L. M. Wong,Kevin van Zandvoort,Justin D. Silverman,Karla Diaz-Ordaz,Ruth H. Keogh,Rosalind M Eggo,Sebastian Funk,Mark Jit,Katherine E. Atkins,W. John Edmunds +22 more
TL;DR: A novel SARS-CoV-2 variant, VOC 202012/01, emerged in southeast England in November 2020 and appears to be rapidly spreading towards fixation as mentioned in this paper.
Journal ArticleDOI
Risk prediction of covid-19 related death and hospital admission in adults after covid-19 vaccination: national prospective cohort study.
Julia Hippisley-Cox,Carol Coupland,Carol Coupland,Nisha Mehta,Ruth H. Keogh,Karla Diaz-Ordaz,Kamlesh Khunti,Ronan A Lyons,Frank Kee,Aziz Sheikh,Shamim Rahman,Jonathan Valabhji,Ewen M Harrison,Peter Sellen,Nazmus Haq,Malcolm G Semple,Peter W.M. Johnson,Andrew Hayward,Jonathan S. Nguyen-Van-Tam +18 more
TL;DR: In this article, a risk prediction algorithm was proposed to estimate the risk of covid-19 related mortality and hospital admission in UK adults after one or two doses of vaccine vaccination.